Board Thread:Game Discussion/@comment-26388545-20190131135015/@comment-34676248-20190301182735

HwyStar wrote: MP4-X endurance for me, with VIP, but still not in my skills to achieve perpetual. Best so far was just over 30km. Levelled from 395 to 399 and didn't spend a bunch of time doing it... maybe 50-60 laps total. Could have done double that but I've been busy with work and life this week.

If you need it for fame bonus days, you can try reaching 50 km. Not too hard with use of time management.