Head to the garage after completing the first street race.Start:
27 March 2015End:
10 April 2015This is a story related challenge, you will get this while playing through the main story.
You can unlock this challenge without donation.
--------------------------------------------------
Achievement requirement changed!
This is a good opportunity to unlock this TrueAchievements application achievement:
(Thanks for reminding: ziplobthud, Alex Kuben)
This game is free until 10 April 2015 and easy to complete 100% in about 3 hours.