What's the best handling sedan I can get for $20K? Used ofc.
Either a BMW, or a Pontiac G8
M5 will be pretty high up there, all gens.
Lancer Evo, too.
E39 M5 is gud, but lolvanos
335 is good, and you can get rwd or awd, but you'll deal with new BMW maintenance
G8 handles better than you'd think, especially if you find someone who's thrown a little (<$1k) at suspension.