I am not really sure why that is such an issue about power for the new EvaGT, as it is as the name says a Grand Tourer and as Simon says, for me anything under 6.0 sec for 0-100kph is quick enough for this application.
Based on information that we gleaned at the factory, it will be a full 4-seater (I'm sure that's in a GT context, if you follow my assumption) and not an additional 2-jump seats a la 911/Evora.
If they are able to hit the weight target of 1250 kg's, the same as a Series IV Aero for what must be a bigger car, then the bhp per tonne looks like this.
Model/weight(kgs)/BHP/ = bhp per tonneEvaGT/1250/306 bhp = 245 bhp per tonne
We have recently owned the following competing GT's and these are their power to weight stats:
GranTurismo/1880/400 bhp = 213 bhp per tonne
Porsche/1605/345 bhp = 215 bhp per tonne
Bristol/1650/380 bhp = 230 bhp per tonne
It would seem that the EvaGT is more than competitive using the power to weight criteria, though I feel that torque and how it delivers its power is actually more important in this application.
The GranTurismo actually felt somewhat underpowered as its peak power was developed at 7100 rpm and its peak torque at 4750 rpm, so you felt that you were always having to 'push it' to extract its performance. It was heavy too and thus you needed the S really which has 230 bhp per tonne, but still develops its power and torque at 7000 and 4750 rpm respectively.
The standard 911 develops a similar power to weight ratio and peak power and torque are at 6800 and 4250 rpm, but the PDK box makes the difference and the car feels lively at all times, basically because it always seems to be in the right gear.
Bristol do not quote power and torque figures, but it is generally accepted that the power is around 380 bhp, not unreasonable for a 6.9 litre mill. The torque is prodigious, as it needs to be as it is geared 40.76 mph per thousand revs in top.
I know which of the three cars I would rather drive down the Autoroute to the South of France in one day in.
The Eva being a twin-turbo with 400 nm of torque (300 ft lbs at 1300 to 5000 rpm) and a pretty light car, this is key to the mix, I don't see why it can't be competitive out-of-the box, and there is little doubt that by the time it is launched BMW will have extracted more bhp/torque out of this engine.
If you want ultimate Morgan performance get an Aero Series IV (or tune an Aero or a Roadster), but let's keep the Eva as a true GT as it is not conceived as a pure sportscar or a Series IV replacement.
