Mustangs are fun to beat up on..............but Porsches are even better. I had a Caymen S come after me on the highway* when I had my nice boost leak and was only spiking 15lbs. Needless to say he lost the "fight" and after I let off the gas he did a (roughly) 130+mph flyby and proceeded to cut a bunch of people off to get away.
*All races depicted in this post are non-fiction and for entertainment perposes only.