Maybe you burned your clutch. That occurs when you hold on the clutch pedal too long and it just slips when you slam on the throttle. The clutch just overheats, burns and the smell comes from the front and fills the interior. The smell doesn't go away for a good couple of days.
If this is the problem, you should brush up on shifting techniques. I doubt it's the brakes. You should have to overheat them a great deal to make them smell. If it's not your tires, it's your clutch for sure.
'02 Mercedes C32 AMG 3.2L Supercharged @ 18psi - 341WHP/358lbs*ft TRQ (DynaPak) Eurocharged custom tune, ASP 178mm crank pulley + PSK, CM30 i/c pump, i/c iso kit, Magnecore wires, NW CAI, dual custom exhaust, H&R sway bars, H&R SS coilovers, KMAC camber kit, H&R spacers, Quaife ATB LSD, goodridge SS lines, Porterfield RS4 pads, AMG 18" rims, AEM UEGO wideband, Dashdaq datalogger, Kenwood Excelon DNX8120