2 
Accel. - I was thinking straight up in terms of 0-100km/h. Four seconds at the top.
Power - just peak hp, I didn't think about torque or area under the curve at all.
Lightness - the inverse of weight. 900kg at the top.
Roadholding - sustainable lateral acceleration. I'm not saying I've measured this for all cars. We have data on some and experience fills in the holes.
Balance - defined as how well the car reacts to drive input. Throttle response, cornering prowess and overall drivability when it matters.
Amenities - luxuries and comforts. How much do you want to take this car on a long road trip with your whiny girlfriend?
Fit/Finish - full marks would be equivalent to new condition.
Offroad - a few of our vehicles see offroad use, but more than that, I thought it would be an interesting way to show how some of our "sports" cars have strayed from practicality. Zero means the car is practically banned from all but glassy smooth asphalt.
Durability - call it the general lack of concern that something is going to break.