How to calculate how many you can earn with a car

[[CSR] Wouter]

Sorry for the bump, but the point is, i want to calculate it without driving it.

But, it this a good formula:

Average speed (m/s) = Average speed (km/h) / 3,6
Distance to income = Average speed (m/s) * Earning interval (5 seconds)
Average distance per coin = Distance to income / Coins (with XFG you earn 4 coins, when your speed is good)
Coins per kilometer = Kilometer (1000 meter) / Average distance per coin
Total earned with car = Coins per kilometer * Lifespan car (in KM, 30.000 for XFG)

That means i can earn more than € 1.000.000 with XFG (If you say average speed is 50 km/h)! I can't believe it. But is the formula true?

Regards, CruiseLover (i-love-cruise)