It's a rough road with lots of challenges in Cars: Lightning League; make sure you have Gems to:
- Purchase Coins: Use Coins to upgrade your Cars' stats.
- Get Power-ups: Gain an advantage before starting a Level.
- Unlock Cars: Bypass collecting Blueprints to unlock.
- Continue: Use Gems to continue instead of starting over after a crash.
- Refill Fuel: Fill up and get back on the road.