Best car for MPG at 80 mph

[After Eight]

Any ideas?

[Disco You]

You do a lot of driving on private roads do you?

[eldar]

Disco You said:

You do a lot of driving on private roads do you?

Or countries where the world doesn't implode at 71mph

[Funkateer]

eldar said:

Disco You said:

You do a lot of driving on private roads do you?

Or countries where the world doesn't implode at 71mph

Like France.

[Turkey]

A small capacity Diesel with an aerodynamic shape, and a 6th gear, I would think. Something like a 1.6HDI Citroen C4 perhaps, if these have 6 forward gears.

[After Eight]

Typically when your speedo shows 80 mph, you are probably going at 75/76mph. I've not known anyone to be pulled over at 75/76 mph on a motorway. (Unless you are driving badly).

What sort of mpg can you expect from the most economical cars? (I'm guessing 55mpg) (My old 320d coupe managed about 48mpg).

Cheers

[After Eight]

I've just been looking at the Insight but seems the hybrids are not that great at higher speeds, they are better at around town driving.

[anonymous-user]

I was impressed to get 36mpg

[After Eight]

I just did - you must have written it when I was writing! 60mpg+ is very, very good - bet your 911 isn't as good!

[davepoth]

Audi A2 1.2TDi. Drag Coefficient of .25, and the same engine that was in the 100mpg Lupo. Also an all aluminium body.

[daemon]

one of the volkswagen bluemotions with cruise control.

They are geared for economy and have aerodynamic changes underneath.

Combine that with cruise control and i'd say its got to be up there.

[Caruso]

It's not a Suzuki Swift 1.5 I can tell you that.

[Bonefish Blues]

After Eight said:

I've just been looking at the Insight but seems the hybrids are not that great at higher speeds, they are better at around town driving.

My Prius on the cruise at an indicated 75 leptons does around 50-55 mpg, based on measurement, not indication (which is optimistic in my car).

Combined with a bit of urban at either end of the Mway, last tank was a measured 58 mpg. VW Bluemotions may do slightly better, perhaps?

[busta]

davepoth said:

Audi A2 1.2TDi. Drag Coefficient of .25, and the same engine that was in the 100mpg Lupo. Also an all aluminium body.

But with 74hp would it actually do 80mph?

[daemon]

Bonefish Blues said:

After Eight said:

I've just been looking at the Insight but seems the hybrids are not that great at higher speeds, they are better at around town driving.

My Prius on the cruise at an indicated 75 leptons does around 50-55 mpg, based on measurement, not indication (which is optimistic in my car).

Combined with a bit of urban at either end of the Mway, last tank was a measured 58 mpg. VW Bluemotions may do slightly better, perhaps?

Best tankful i got was 65mpg on my passat bluemotion. That equates to over 1000 miles to a tank.

heres my best run to work - 23 miles over A class roads, then motorway, then city driving...







Even allowing for the 5% discrepency thats pretty impressive!

[homerjay]

busta said:

davepoth said:

Audi A2 1.2TDi. Drag Coefficient of .25, and the same engine that was in the 100mpg Lupo. Also an all aluminium body.

But with 74hp would it actually do 80mph?

The same thought crossed my mind.

The wifes 1.6hdi c3 Picasso is lucky to see 50mpg on a run. It must have the aerodynamics of a small house.

Yet it will do over 100mpg at 50mph

I'm thinking some larger lazier diesel would better.

[rudecherub]

IIRC the Trident Iceni Diesel did a claimed 70mpg @ 70mph at the Millbrook Bowl.

Anyone know what's happening with this car?

[Fatman2]

davepoth said:

Audi A2 1.2TDi. Drag Coefficient of .25, and the same engine that was in the 100mpg Lupo. Also an all aluminium body.

Sorry to piss on your fireworks but sadly drag coefficients don't do a lot for regular cars. Not sure why companies brag about this kinda thing when the determining factor is the arse end of the car

[Stedman]

I don't care what you lot think, XJ diesel (First gen-X350).

[macdon2000]

I have an abused 04 plate mondeo estate.
At 56 miles an hour I can average 77mpg
At 80mph it drops to about 57mpg.
Compared to the 4litre V8 disco it replaced........(I now forget what petrol stations look like)