Talk:RR3 Wiki:R$1,000,000+ Payout/@comment-27505406-20160109111907/@comment-25956839-20160109141448

See:
 * Upgrades Strategy For 100% Completion - Upgrade requirements and rewards to get to 100% completion.

If you've unlocked Endurance Kings then the Porsche 919 Hybrid (2014) is the cheapest, but that does assume you have all three 2014 LMP1 cars. If you have not bought or won the 2014 Porsche then the Audi R18 e-tron quattro (2014) is the cheapest in spend, as it's R$4m to buy, less if you can unlock it's showcase with a 911. the Audi will still need some upgrades, see the comments on the Endurance Kings page for full details.