Am gasit singur raspunsul:

Q: "Why won't this car go in to fifth gear? The only permanent upgrade it has is the engine stage 1, it simply will not go into fifth, and refuses to go faster than 124mph. Anyone know why?"

A: "Because most American cars back then didn't have an overdrive gear. 4 speeds is all it has. If you want it to go faster buy the adjustable racing transmission."