RE: Manhart MH3 GTR takes BMW M3 to 650hp
RE: Manhart MH3 GTR takes BMW M3 to 650hp
Monday 8th August 2022

Manhart MH3 GTR takes BMW M3 to 650hp

Wonder if they'll do it for a Touring as well?


Say what you want about how the new M3 and M4 look (you’ve had almost two years now, get on with it), but there hasn’t been much debate about how either drives. So composed and assured are both coupe and saloon that, even in two-wheel drive form, the G80 M3 and G82 M4 have felt like they could handle more than the standard 510hp and 479lb ft.  

So that’s exactly what Manhart has done. Though this MH3 GTR is a one-off like its previous M2- and M5-based GTRs, it would be a shock if there weren’t similar tuning packages offered in due course. The big numbers here are 650hp and 590lb ft, meaning 100hp more than even a CSL and M5-rivalling torque. It’s supercar power, really, with both Ferrari Roma (620hp) and Lamborghini Huracan STO (640hp) officially producing less.  

What’s perhaps more significant is that Manhart states these enormous gains have been achieved through nothing more than an exhaust and an ‘MHtronik’ control unit. Which would suggest there’s a reasonable amount of tuning headroom in the 3.0-litre, twin-turbo, ‘S58’ straight-six engine. And that this will be a very fast M3, even without any official numbers from Manhart.  

The modifications don’t stop there, as you can probably tell. The car here now runs on KW V4 coilover suspension, though a (presumably calmer) lowering kit with H&R springs and the standard dampers will be available to those Manhart cars that aren’t GTRs. Given how tough the standard car can be, the mildest change sounds wise. The Manhart Concave One wheels here are 20-inch at each corner where the standard M3/M4 has a staggered 19-/20-inch setup. Obviously there’s carbon everywhere, too, though it’s mostly acquired from the BMW Performance catalogue. And it wouldn’t be a Manhart-modified M car without the decal set… 

Inside has seen a significant change, too. Those who thought that the optional carbon seats in the M3 and M4 were bold haven’t seen anything yet! Manhart has fitted carbon Recaro Podiums to the front of the GTR – skeletal seats that look like they belong in an art museum as much as a BMW. Let’s hope they’re a little comfier than they look. Manhart describes the fitment as ‘an absolutely spectacular innovation’ – we won’t disagree with that. 

Though a price hasn’t been released for this one-off build, Manhart does already list individual parts for sale. Perhaps most notable of those is the MHtronik control unit, which on its own promises 635hp (M5 CS power) and 575lb ft without touching the exhaust. For €2,500, it’s easy to see the temptation…


Author
Discussion

MissChief

Original Poster:

8,003 posts

199 months

Monday 8th August 2022
quotequote all
Still looks awful.

dalzo

1,877 posts

167 months

Monday 8th August 2022
quotequote all
635bhp just from a tuning box? Am I reading that right?

A 125bhp jump from a map, impressive if that’s the case although seems a bit optimistic.

Kipsrs

723 posts

80 months

Monday 8th August 2022
quotequote all
Each to their own and all that but have to agree with MissChief. . . . hurl

9k rpm

620 posts

241 months

Monday 8th August 2022
quotequote all
Most tuners are stating +100bhp with just a map so this with a free flowing exhaust probably about right especially as they are well know to make more than standard power. Pretty mad really.

dalzo

1,877 posts

167 months

Monday 8th August 2022
quotequote all
9k rpm said:
Most tuners are stating +100bhp with just a map so this with a free flowing exhaust probably about right especially as they are well know to make more than standard power. Pretty mad really.
It is!
Amazing that bmw are leaving that much headroom for tuners to get such big power with little supporting mods.
I can’t get over the looks but it imagine it would be something else to drive at 650bhp.

Terminator X

20,916 posts

235 months

Tuesday 9th August 2022
quotequote all
The front end is still an absolute disgrace.

TX.

200Plus Club

13,787 posts

309 months

Tuesday 9th August 2022
quotequote all
Terminator X said:
The front end is still an absolute disgrace.

TX.
Agreed, could be the best drivers car ever and that grille would still put me off buying one. Horrific cartoon caricature of a car.

wpa1975

14,810 posts

145 months

Tuesday 9th August 2022
quotequote all
MissChief said:
Still looks awful.
Sums it up nicely, yes it is quick but I could not live with looks.

Jon_S_Rally

4,508 posts

119 months

Tuesday 9th August 2022
quotequote all
The clumsy front wing vents and where the rear arch meets the door irritates me far more than the grill to be honest.

That aside, I think this looks ok. I'd keep the BMW seats, and wouldn't want the little canard things, or the graphics, but it looks pretty good otherwise.

evojam

795 posts

191 months

Tuesday 9th August 2022
quotequote all
I thought that front end might eventually grow on me given time and being a former M3 and M5 owner I really wanted to like it but afraid for me it still looks as naff as it did at launch..

Clivey

5,699 posts

235 months

Tuesday 9th August 2022
quotequote all
200Plus Club said:
Terminator X said:
The front end is still an absolute disgrace.

TX.
Agreed, could be the best drivers car ever and that grille would still put me off buying one. Horrific cartoon caricature of a car.
Add another “+1” to that. If the ICE ban is to happen in 2030, this generation of BMWs should have been a swansong, especially since they’ve given us the Touring as well…but they had to go and spectacularly ruin it, didn’t they? frown

asci.white

561 posts

104 months

Tuesday 9th August 2022
quotequote all
dalzo said:
It is!
Amazing that bmw are leaving that much headroom for tuners.
Most likely to safeguard the engine in the event of poor quality fuel.

thatdude

2,660 posts

158 months

Tuesday 9th August 2022
quotequote all
dalzo said:
635bhp just from a tuning box? Am I reading that right?

A 125bhp jump from a map, impressive if that’s the case although seems a bit optimistic.
I wonder if the "conservative" standard tune is to protect the engine in terms of varying qualities and blends of fuel, not just from country to country but also throughout the year as bends change from summer to winter.


SpartaThisIs

102 posts

62 months

Tuesday 9th August 2022
quotequote all
Why on earth has no company thought to produce a replacement grille?

Comparing the power is one thing but a BMW vs a Ferrari, Lambo, McClaren, nah. By the time you've bought the car and dine all the mods offered you get a 1 Yr old Bentley Continental GT or Aston Martin. At this price point it isn't just bhp.

untakenname

5,369 posts

223 months

Tuesday 9th August 2022
quotequote all
There's a couple of aftermarket replacement front ends now available.
https://www.motorbiscuit.com/want-a-new-2021-bmw-m...

The exhaust looks to be very low in the rear shot, would be a worry with speed bumps and also can't do much for the underside aerodynamics.

FlukePlay

1,198 posts

176 months

Tuesday 9th August 2022
quotequote all
I think I'd be a tad embarrassed to drive this to be honest. It's very boy racer...not for me.

But the boy in me does giggle at ManFart laugh

By the way, how does this affect BMW's Warranty?

Clivey

5,699 posts

235 months

Tuesday 9th August 2022
quotequote all
untakenname said:
There's a couple of aftermarket replacement front ends now available.
https://www.motorbiscuit.com/want-a-new-2021-bmw-m...
Unfortunately, whilst those renders went around the Internet a couple of years ago, I don't think anyone has actually produced an atermarket front end for these cars yet...if / when they do, I wouldn't be surprised if they made a fortune!

philmots

4,666 posts

291 months

Tuesday 9th August 2022
quotequote all
Having had a go in a standard xdrive car I’ve no idea in what situation you would think it needs more power.

jbforce10

509 posts

206 months

Tuesday 9th August 2022
quotequote all
If you look really closely, you can just about see that there are tyres on the wheels.

kambites

71,653 posts

252 months

Tuesday 9th August 2022
quotequote all
thatdude said:
dalzo said:
635bhp just from a tuning box? Am I reading that right?

A 125bhp jump from a map, impressive if that’s the case although seems a bit optimistic.
I wonder if the "conservative" standard tune is to protect the engine in terms of varying qualities and blends of fuel, not just from country to country but also throughout the year as bends change from summer to winter.
I suspect it's more that ever tightening emissions regulations are strangling outputs more and more. Hence when tuners get their hands on these cars and ignore said emissions regulations, they can find bigger and bigger gains.