Best vehicle?

I use cars to run over zombies. I've been running around with the military truck but it only lets me run over like 20 zombies before it starts to need repair. Is this not a good strategy lol? Or should I aim for a better car to run them over? I've been trying to clear infestations but have lost two members as I seem to lack a good strategy (obviously not hitting bloaters or juggernauts with the cars). Any advice on which vehicle is the best to use? I'm on Trumbell Valley in the stand alone game you play with Quincy. Thanks in advance for any tips!!!!