6th gear is just for cruising, it in fact a lot of the times I'm in 5th on the freeway around 70mph. This car doesn't come alive until about 4500rpm, after 5000rpm it's a beast!! You would want to downshift to 4th for passing, or stay in 5th depending on your RPM's
And if your going 65 and you really want to pass someone fast, downshift to 3rd, this puts you right in the sweet spot of the powerband. 3rd gear is good to almost 100MPH @ Redline, according to Road & Track data specs. Here is the gear list:
Transmission:
6-speed manual
Gear Ratio
Overall ratio
(RPM) Mph
1st 3.79
13.99
(7500) 42MPH
2nd
2.32
8.56
(7500) 69MPH
3rd
1.62
5.98
(7500) 98MPH
4th
1.27
4.69
(7500) 125MPH
5th
1.00
3.69
est (7300) 155*MPH
6th
0.79
2.92
est (5800) 155*Electronically limited.
Final drive ratio
3.69:1
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