Point all wheel driven vehicles in the direction of the Sun.
Then at a designated moment everyone accelerate as hard as the vehicle will, then roll to a stop. Repeat.
The Earth will be moved "out" of its orbit from the Sun... all actions having an equal and opposite reaction an' all... of course, more distance = less heat.
Possibly it may be more efficient to point the vehicles in the opposite direction to the Earths orbit to speed earths orbit to counter
centripetal effect of the Suns gravity allowing Earth to move away from it... If you are good with arithmetic you may like to crunch the numbers vis a vis
vehicles pointed at the sun versus vehicles pointed in the opposite direction of the Earths orbit.
