Talk:Audi R8 e-tron Special Edition/@comment-2A02:1206:4583:F9F0:60B8:8BAB:44A6:D6F4-20180216125407/@comment-31458611-20180216185623

A few figures to illustrate Enyby's answer:

If you upgrade from 0300-4040 to 0300-5050, you'll add 21.8 km/h to top speed and a modest 54 to rank (a 0.398 speed/rank efficiency); whereas

if you upgrade from 0300-4040 to 0400-4040, you'll add a heftier 27.9 km/h to top speed, but also a whopping 112 to rank (a 0.248 ratio).

The latter is is not necessarily bad; it's just less efficient. What is real bad, BTW, is maxing nitro, given that going from 0 to 5 gives only 13.5 km/h for +269 rank...