what would you use instead of petrol in side of a car?

Question: what would you use instead of petrol in side of a car?
- Keywords:
  car,
  petrol
Asked by Arnold Schwarzenegger to Yelong on 10 Mar 2015.
- Yelong Wei answered on 10 Mar 2015:
  
  At present, petrol is the main kind of fuel to drive a car, with the development of technology, we hope that other clean fuel or electricity can be used to drive a car, for example, Tesla is a leading company in the electric vehicle market.

Question: what would you use instead of petrol in side of a car?