I mathed-out the gears in Projekt Spyder as versus those in P550-0051
Gear ratios (final drive):
550-0051 my car
1st: 3.18 (14.1/1) 3.80 (13.1/1)
2nd 1.94 (8.6/1) 2.06 (7.1/1)
3rd 1.23 (5.4/1) 1.26 (4.3/1)
4th 0.96 (4.25/1) 0.93 (3.2/1)
R&P: 4.43 3.44
Top speed in
1st: 41 mph (@7500 rpm) 34 (@6000)
2nd 66 60
3rd 104 100
4th 133 140