I'm doubtful of under-2-second 0-60 times. Are they on DOT tires with a Street legal car ?
Engineering Explained did this video -
https://www.youtube.com/watch?v=i7yigpPSu_o
But in summary - look at the 60-0 braking times for most cars - it is (my opinion) a safe assumption that a car cannot accelerate faster than it can brake.
**if** this is true, then if a car takes 2 seconds to go from 60 to 0 (limited by tire traction and weight/inertia) then a car should not be able to accelerate from 0-60 in less than 2 seconds. In addition - the air resistance of a car will help it brake quickly, but hinder its ability to accelerate.
Granted, the video and I are making a lot of assumptions here (awd, no jet-assist, DOT tires, constant deceleration when braking, measurements are being made with appropriate precision, no 'roll out')... but it seems like 2 seconds is the time to beat, and unless you start rocking top-fuel dragster tires, its gonna be tough.
thoughts ?
-John