Board Thread:Game Discussion/@comment-31526827-20170403025710/@comment-30967537-20170403090152

Most expensive Gold-only upgrades ...

1. Toyota TS040 Hybrid, Engine-7, 720 Gold

2. Ferrari LaFerrari, Engine--8, 705 Gold

3. Audi R18 E-Tron Quattroo (2014), Engine-7, 670 Gold

4. Lamborghini Veneno, Engine-7, 655 Gold

5. Porsche 911 RSR (2015), Engine-8, 615 Gold

6. Porsche 911 RSR (2014), Engine-8, 605 Gold

7. Ferrari F14T, Engine-8, 565 Gold

8. Renautl R.S.01, Engine-8, 525 Gold

9. Porsche 911 RSR (2013), Engine-8, 450 Gold

10. Audi R18 E-Tron QUattro (2015), Engine-8, 440 Gold

All Engine upgrades!

The car with most the expensive Upgrade is the McLaren MP4-X which has two 500+ Gold Engine upgrades but they're both available for R$ ... phew!