FIRST OF ALL - is the truck a diesel or gas? Being Greece, I'd say it'd be a diesel.
Is it modeled after a real life truck? Or like a concept?
Titans and Hilux's come to mind.
The truck in this game does 0-60 in about 15 seconds. Which is painful. If it were a gas/petrol engine I'd be at least a 4.9L V8, probably bigger, either way the 0-60/100km/h would be about 7 seconds.
Even with a little 3L 4 cyl diesel like a Toyota Hilux (which is in fact smaller than the truck in this game) the 0-60 would be NO MORE than 12 seconds. A big Dodge Ram 2500 with a Cummins can do it about 7-8 seconds. 20 years from now I'm sure the diesels with small engines will be able to do 0-60's in less than 9 seconds.
Can you please change the 0-60 anywhere from 8-10 seconds so realistic and I can actually have fun driving it.