Is yours a MT or AT.
If MT, for a 1.6L car to drag. It would not lose to a van. Have you
drag each gear to 7k rpm.
If you did, by 3rd gear you would be at least a car length behind.
If not enough, get a open Pod. It would help in a way.
Tried with my fren, matrix and lancer both open pod, by 3rd gear at
80km, I already overtook by half car length. Both doing 7k rpm. We
trying 0-100.
If you say 140 on par with van, try drop to 4th gear and drag some
more.
A 1.6L car even japanese car can go to 180. Korean or conti car can
go to 200 on drag.
Do some maths on the ratio of gear/max speed. Theres no way a van
can win a car. 1:40 2:90 3:130 4: 160 5:180> This is based on
CS3 MT with open pod