The rev limiter prevents the engine revving past a set point, at which point the engine will die a little, warning you to get up a gear, if you havent hit the rev limiter yet, and you would know!, then you could have a higher indicated top speed in second.
The way to get to 60 fastest will depend on the max power in each gear, not all engines need to go anywhere near the redline to get the best times, although some do! I don't think my V6 does 60 in second, but it might, the ratios are a little closer on the six speed 'box.
The usual way manufacters and testers get their figures is to hold the throttle around Half way down and dump the clutch and floor the gas at the same time, not many people ( are dull enough to) do this to their own cars, and its a good way of getting through clutches
To check your speedos accuracy at 60, time yourself between telephone boxes on the motorway, they are 1 mile apart, so thats 60 seconds...Or borrow a sat nav. which displays gps speed, at 60 most cars will be pretty close especially now they are all electronic speedo's.
Have fun in your Alfa, but don't kill it - or yourself
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