OK, I recently aquired one of these (thanks Mike
Now the question being how accurate have people found these and is it representative of what your car actually achieves?
For instance, I have a mk1 172, had a little bash earlier and achieved 0-60 in 6.41, and 60-0 in 180 ft (I didnt stand on the brakes with any aggression)
Now, considering the car is booked around 6.9 ish, thats pretty good (I think)
So what have other people achieved on the nifty little device and in what cars? Oh and no fishermans tales!!