The Car Eco Challenge.     (This is not how to do it.)     Inspired by this challenge: I'm starting a new challenge focused on cars. The challenge: start at the KSC and drive towards the north pole using 50 units of fuel. Rover wheels are not allowed, only landing gear. The car is to be powered by a jet engine. Required: 4 kerbals in seats and two science containers. The use of a boost flap is encouraged. Mechjeb is encouraged for use of the rover au