RE: Driven: Honda CR-Z Mugen

RE: Driven: Honda CR-Z Mugen

Thursday 23rd June 2011

Driven: Honda CR-Z Mugen

Hybrid plus supercharger plus dubious body kit equals... what, exactly?



I'm going to take a bit of a punt here, but I reckon it's a fairly safe bet that you won't like the styling of the Mugen version of the Honda CR-Z.

No doubt there will be a few of you for whom the be-winged, be-spoilered and be-side skirted looks push the right buttons, but I don't think I'm going out on all that much of a limb if I say that you won't be in a majority...

But, however dubious the looks of this one-off special, there's no denying it's an intriguing concept. Honda pitches the standard CR-Z as the world's first genuinely sporty hybrid car, but the 'sporty' aspect doesn't stand up to all that much scrutiny when you drive the car. It's a moderately spritely thing, but a total power output of 122bhp and a 0-62mph sprint posted in 9.9secs is hardly the stuff of performance legend.


Which is why bolting on a supercharger to the CR-Z is such a fascinating idea, because possibly - just possibly - it could be this which elevates the CR-Z to a genuinely sporting status. Not that Honda or Mugen would thank us for the phrase 'bolting on'.

Colin Whittamore from Mugen Euro is at pains to point out that the supercharger has been fully and thoroughly integrated into the Mugen CR-Z's drivetrain and its IMA system. The three drive modes (including a special 'MUGEN' rather than sport mode mode) are all carried over, with 50mpg easily achievable in 'eco' mode (we'll take Mr Whittamore's word for that one...).


Although this is still very much an experimental development car, the supercharger (Mugen calls it iCF for 'Integral Centrigual Forced induction) has been slotted in sympathetically and effectively and, with a bit of ECU tweakery, works pretty much in seamless harmony with the IMA electric motor and the 1.5-litre internal combustion engine.

"The idea was to use the significant advantage of the early torque provided by the Honda IMA electric motor," says Colin, "then increase the torque available from the engine progressively".

As a result, the torque curve of the CR-Z is much more like that of a conventional car. Thus (theoretically at least), this rather unusual vehicle, with its odd-tech drivetrain, 197bhp and 158lb ft of torque, should behave like a conventional, lightweight hot hatch, despite achieving this in an far from conventional way.


But theory is nothing without practice, so Honda and Mugen have kindly laid on Rockingham racetrack for us to have a little go. The first thing you notice, having got over the shock of the looks and strapped yourself in, is how 'proper' this car feels. Yes there are a lot of aftermarket bits, but this is no bare-metal-and-duct-tape hack - this is one properly built experiment.

The second thing you notice is how damn loud the exhaust is. Apparently the original one they fitted was strangling the engine's ability to breathe. This one most definitely does not do that, but its boomy gargle would want to be toned down should a fast CR-Z ever make it anywhere near a production line.


The third thing you notice is the rev limiter. This is because, if you have any previous experience of fast Hondas, you bounce into it more than once. You see, instead of revving to 8000rpm or 9000rpm, the Mugen CR-Z butts against the roof of its revs at just 6500rpm or so. This is most definitely a different type of fast Honda. One that delivers its best with low-down power and torque.

There is a problem, however. True enough, it picks up the pace sharply and revs keenly and freely, but it doesn't actually seem all that nippy. Admittedly a wide, empty circuit such as Rockingham sucks away any real sensation of speed, but even accounting for that the Mugen seems ever-so-slightly lacking in shove. But this is still an experimental car, a first dalliance with a very new approach to fast motoring form Honda and Mugen, so we'll have to give 'em the benefit of the doubt on that one.


What there is no doubting, on the other hand, is the CR-Z Mugen's agility. Swanky carbon fibre doors save 31kg (don't expect to see that on a Honda or Mugen price list anytime soon) and combine with various other lightweight nods (including a carbon fibre bonnet and absent rear seats) to save a total of 50kg. There are also five-stage adjustable dampers, a widened track and 320mm grooved, ventilated disc brakes with chunky four-pot monoblock calipers to help slow things down.

The combination of all these factors really transforms the CR-Z, creating a flingable, grippy and fun car. The turn-in feels sharp, there's loads of grip and the CR-Z feels stable all the way through longer corners, while the brakes are truly magnificent; strong, sharp and yet easy to modulate.


The only thing that frustrates in the handling department is the fact that the front end isn't pointy enough. But no doubt you could get the back end moving around a fair bit more with a few adjustments to the suspension and create a car that would be a pointy, adjustable hoot on track days. And I never thought I would describe a hybrid as a hoot on track.

There's a lot of potential in the CR-Z Mugen, but they do need to work on that engine a little more. And, if they ever put one on sale, market it for a fair chunk cheaper than the £150k it cost to develop this one-off.


You can get bits of the Mugen CR-Z for your standard car, however, including the exhaust, wheels and suspension. That little lot will set you back £6500, mind. Whether that's worth it depends how much you value agile handling, really...

As for the rest of the car, well obviously if they made it it wouldn't cost £150k, but we doubt it would dip below £30k. But that's not really the point of the Mugen CR-Z. It is a statement of performance intent, Honda and Mugen showing us that, while we might have to embrace new technology, we won't have to give up what we love - fast cars.

Mugen Vs standard CR-Z spec:



 

Author
Discussion

AV12

Original Poster:

5,305 posts

209 months

Thursday 23rd June 2011
quotequote all
Getting more interesting by the moment, this hybrid tech. Still in it's infancy, but this is the way our cars are going. I remain open minded - lets see what some of the other big manufacturers offer in the coming years...

Haighermeister

30,353 posts

161 months

Thursday 23rd June 2011
quotequote all
Loving it a lot. I want one smile

Fetchez la vache

5,575 posts

215 months

Thursday 23rd June 2011
quotequote all
Lets face it, the styling is just to grab your attention. Interesting stuff under the garish tat however... no doubt we'll be seeing more of this type of thing from other manufacturers in time...

Ephraim

299 posts

190 months

Thursday 23rd June 2011
quotequote all
OK - so the halfords bling is somewhat OTT; but the drivetrain (and let's face it that's what this is about) looks like a massive step in the right direction. Who wouldn't want a 200bhp motor that can return 50mpg when you don't feel like giving it some beans? Sounds like there's still a way to go, but let's hope they persist - performance and economy? Sign me up!

MrLou

879 posts

222 months

Thursday 23rd June 2011
quotequote all
Fetchez la vache said:
French Soldier said:
Un cadeau.
Other French soldiers said:
A what?
French Soldier said:
A present.
Other French soldiers said:
Oh. Un cadeau.
Other French soldiers said:
Oui oui.
French Soldier said:
Allons y!
Other French soldiers said:
What?
French Soldier said:
Let's go!
Other French soldiers said:
Oh.
Took 5 minutes but worth it

MrLou

879 posts

222 months

Thursday 23rd June 2011
quotequote all
Ephraim said:
OK - so the halfords bling is somewhat OTT; but the drivetrain (and let's face it that's what this is about) looks like a massive step in the right direction. Who wouldn't want a 200bhp motor that can return 50mpg when you don't feel like giving it some beans? Sounds like there's still a way to go, but let's hope they persist - performance and economy? Sign me up!
Yes, does sound good as an overview, but to do it they've had to take the lightest car Honda make, strip it out and add a boatload of carbon. To get similar performance out of a real-world car they'd probably have to go closer to 250/300 BHP to make up for the extra weight.

Gizmo!

18,150 posts

210 months

Thursday 23rd June 2011
quotequote all
I'm not getting into an argument about this again. But I like it a lot. smile

Riggers

1,859 posts

179 months

Thursday 23rd June 2011
quotequote all
MrLou said:
Oddness
At the risk of going off top - sorry, what??

MrLou

879 posts

222 months

Thursday 23rd June 2011
quotequote all
Riggers said:
MrLou said:
Oddness
At the risk of going off top - sorry, what??
fetchez

and

cadeaux

Riggers

1,859 posts

179 months

Thursday 23rd June 2011
quotequote all
MrLou said:
Ephraim said:
OK - so the halfords bling is somewhat OTT; but the drivetrain (and let's face it that's what this is about) looks like a massive step in the right direction. Who wouldn't want a 200bhp motor that can return 50mpg when you don't feel like giving it some beans? Sounds like there's still a way to go, but let's hope they persist - performance and economy? Sign me up!
Yes, does sound good as an overview, but to do it they've had to take the lightest car Honda make, strip it out and add a boatload of carbon. To get similar performance out of a real-world car they'd probably have to go closer to 250/300 BHP to make up for the extra weight.
Aye, but remember this is a process - and the engine development is far from finished...

Riggers

1,859 posts

179 months

Thursday 23rd June 2011
quotequote all
MrLou said:
Riggers said:
MrLou said:
Oddness
At the risk of going off top - sorry, what??
fetchez

and

cadeaux
I'd completely forgotten about the Trojan Rabbit... now let's get back on topic. Silly person. wink

Guvernator

13,168 posts

166 months

Thursday 23rd June 2011
quotequote all
It's a step in the right direction but there's still a long way to go before I am convinced by a performance hybrid. Still at least Honda\Mugen are thinking about it so there does appear to be light at the end of the green tunnel for us petrolheads.

300bhp/ton

41,030 posts

191 months

Thursday 23rd June 2011
quotequote all
ok I guess I'm in the minority. I actually don't hate its styling. Don't love it either, but at least it isn't bland. Which in my book certainly makes it score higher than something like a Golf GTI.

However, I do confess to not really seeing the point of the car. As an idea it has far too many bits that won't make production and I can't see any production version actually being as quick as hoped.

Also all this hybrid crap just smacks of deluding hypocritical hysteria. There is no real world point to having this car as a hybrid apart from to fool the greenies and certain government/EU taxes and piss poor tests they currently use to rate vehicles on.

Lets face it a 1.6 turbocharged MINI CS will do over 50mpg too and that doesn't need some bullst electric motors to do it.

PhilJames

234 posts

194 months

Thursday 23rd June 2011
quotequote all
I don't think it looks bad at all, spoiler doesn't look like it was designed in a wind tunnel (probably because the back of the car doesn't either) but a decent respray would look awesome.

But with that performance I am surprised they saw any point in showing this off!

Guvernator

13,168 posts

166 months

Thursday 23rd June 2011
quotequote all
300bhp/ton said:
ok I guess I'm in the minority. I actually don't hate its styling. Don't love it either, but at least it isn't bland. Which in my book certainly makes it score higher than something like a Golf GTI.

However, I do confess to not really seeing the point of the car. As an idea it has far too many bits that won't make production and I can't see any production version actually being as quick as hoped.

Also all this hybrid crap just smacks of deluding hypocritical hysteria. There is no real world point to having this car as a hybrid apart from to fool the greenies and certain government/EU taxes and piss poor tests they currently use to rate vehicles on.

Lets face it a 1.6 turbocharged MINI CS will do over 50mpg too and that doesn't need some bullst electric motors to do it.
It might not be fooling us PH'ers but unfortunately the masses have been brainwashed which means manufacturers have to play by the rules set down by popular opinion. We all know it's BS but I'd rather this then they kill off performance cars altogether which seems to be the end goal for the greenies.

rossw46

1,293 posts

161 months

Thursday 23rd June 2011
quotequote all
I like it...but I'd have it in another colour,maybe white or red...

I look forward to the day that this type of car actually becomes affordable,let's face it,30 grand isn't going to do it any favours in terms of sales.

Riggers

1,859 posts

179 months

Thursday 23rd June 2011
quotequote all
rossw46 said:
I like it...but I'd have it in another colour,maybe white or red...

I look forward to the day that this type of car actually becomes affordable,let's face it,30 grand isn't going to do it any favours in terms of sales.
...Mind you that's just my personal punt on what it'd cost.

I figure that, although Mugen admitted that £39k for the Civic thing they did a couple of years ago was a bit ludicrous, the amount of stuff they actually do to/put on their cars does make it hard for them to get the costs down when it comes to retail prices.

You'd call it an engineering-led approach rather than a marketing-led one, I suppose (if you were being kind)...

Hoygo

725 posts

162 months

Thursday 23rd June 2011
quotequote all
30k for a 200hp coupe/hatchback,RLY?

At least with the Mugen K20 240 hp it would have been special,but this is a load of sh!te.

Ephraim

299 posts

190 months

Thursday 23rd June 2011
quotequote all
300bhp/ton said:
There is no real world point to having this car as a hybrid apart from to fool the greenies and certain government/EU taxes and piss poor tests they currently use to rate vehicles on.
But in the real world, those tests and that tax make a real difference - and I can't see them going away any time soon.

Personally, truth be told, I don't see the big to-do about the difference between £200 and £460 per year on tax. Just factor it into your running costs. But then most of my cars can splurge a big bill without warning, which could wipe out that £260 without a second thought.

But, you only have to read the forums to see how otherwise rational petrolheads can get themselves into a tizz about tax banding.

With the death of high-emissions fun jap fast cars (see RX-8, CTR, etc), if this sort of thing allows the engineers to carry on making interesting alternatives to the *yawn* turbo VAG greyness, then I'm all for it.

soad

32,915 posts

177 months

Thursday 23rd June 2011
quotequote all
It's alright. Can I have one painted white, please?