Of course, I'll defer to your hubby's view, but to my mind the Cobra (be it one of Shelby's 289/427 originals or one of the zillions of kit/replicar/authorized replicas w/modern 5.0V8s) though of course valuable, attractive and over-powered is perhaps not the best analogy for you. Cobras are also renowned for handling like dogs in all but extreme track use, having truck-like steering and roasting both passenger and driver due to heat from the other side of the fire wall. Basically: primitive, brutish beasts in very sexy bodies (I once owned a '69 Stingray softop with a 427... also pretty but brutish).
Now, from the few images I've seen, I have NO doubt that you've got an extremely sexy body Zasha... but I hardly think of you as brutish, or as having any of the other less-than-ideal qualities of Cobras (even the 289s, which were better balanced than the 427s). This, despite your gym and bodybuilding habits/interests, which I don't equate with brutish in any respect.
Though I'm a bit of a gearhead myself, I can't immediately come up with an automotive equivalent for you, due mainly to the fact that my knowledge of you is quite finite. Nevertheless, limiting myself only to cars currently in production (to make choosing easier), and taking into consideration what little I actually know about you (muscles, dancing, Mac person, architecture business...) I'd have to say perhaps a Boxster S, or maybe a M Coupe. Both have considerable power, but also count handling finesse, excellent build quality and everyday drivability among their virtues.
JMHO of course.