How about a smoke trail that implants a "virus" in the cars computer and limits the performance of it, aka slows it down. The longer someone stays in the smoke trail, the longer the virus would maintain its duration. From here the gameplay performance can be easily adjusted to ones liking. It could also serve as a sort of a smoke screen as well, though maybe on a stacked level of the pick-up, which would increase density or something. Like I said, can be easily adjusted to ones liking.
A reasonable explanation for it would be that the smoke itself would actually be bazillions of nano machines. Name "Nano Virus" would actually fit quite well.
Possible counters for this could be a shield deployed to the front of the car or... well, maybe driller missiles when implemented, they would simply burn down the smoke while flying through it, or something. Following that, a well aimed standard missile could also do the trick (you can do some seriously epic sniping shots with the missile