real world figures for 111R

[wantalotus]

Last week I found myself watching 5th Gear, and was surprised to see the spot on the 'new elise'.
I was also surprised to hear the 0-60 time of over 6 secs.(a bit slow I thought)
This got me thinking about the 111R, seem to remember figures of 4.9 secs, which I think is VERY optimistic.
Has anybody done the figures on their un modified 111R, if so it would make interesting reading if you would share the info.
Before you all start, I know that this is just what the Elise is NOT about, but if they quote figures, surely they must be reasonably achievable?

[Dift]

I assume they might be achievable if you side step the clutch at 4000rpm... I'm not going to be trying that anytime soon though!

[otolith]

This site has a calculator which will estimate acceleration figures given power and weight. Plugging the numbers from the Elise in gives you these expected figures for a 189bhp, 860kg rear wheel drive car:

Power at Flywheel (BHP) : 189
Weight without Driver (KG) : 860
Power to Weight Ratio (BHP Per Ton) : 223.30
0 - 60 mph (Secs) : 5.04
0 - 100 mph (Secs) : 13.08
60 - 100 mph (Secs) : 8.05
Quarter Mile (Secs) : 13.45
Terminal Speed (MPH) : 101.38
Drag Strip Quarter Mile (Secs) : 13.35
Drag Strip Terminal Speed (MPH) : 102.57

Lotus claimed:

0-60 mph : 4.9s
0-100km/h : 5.2s
0-100 mph : 13.0s
60-100 mph : 8.1

Given that the calculator is assuming a typical rear wheel drive car and that the Elise has better than average traction off the line (because of its weight distribution), I don't think Lotus's claims are unreasonable. If you look at the measured figures, they aren't quite getting the car off the line as well as Lotus's test driver did, but they aren't that far off.

AutoCar:

0-60 mph : 5.1
0-100 mph: 13.0
60-100 mph: 7.9

Evo:

0-60 : 5.6
0-100: 13.9
60-100: 8.3

Tabulated:

	Claimed	Predicted	Measured (AutoCar)	Measured (Evo)
0-60	4.9	5.04	5.1	5.6
0-100	13	13.08	13	13.9
60-100	8.1	8.05	7.9	8.3

Worth considering that the Lotus claimed times will be achieved with only a driver on board, while AutoCar tests two-up.

Also worth considering that in almost any car, but especially a manual that needs lots of revs to make peak power, you are not going to be able to replicate the official times in your own car - not unless you have a complete lack of mechanical sympathy.

[The Pits]

Very easy to believe that the 111r would have a more impressive 0-60 time than it's 0-100 time relative to other more powerful, heavier cars.

It's disproportionately quick to 60. And I'd say those figures feel about right.

[Stu_00]

You need a test of smile per corner !