Okay, so you'd like 3+ seats in the 4x4.
Have sprint mashed constantly do you? I don't want your fuel bill.
Motorized vehicle speeds in 7d2d, confirmed back in 19.3 (iirc it was @Boidster that did the checks, might have been @meganoth)
Vehicle
Speed
Sprint Speed
Minibike
7
10
Motorcycle
9
14
4x4
9
14
Gyrocopter
7
15
Funny thing is that sprinting Bicycle + College jacket, Steroids and Mega Crush is even faster than a sprinting Gyro (if what I noticed in game about the jacket and chems effects working while on the bicycle as well is accurate)
Bicycle Sprinting
10
With College Jacket
11
With college jacket and steroids
12
with college jacket, steroids and mega crush
17
Just doesn't have the same ability to ignore terrain as the Gyrocopter.