Thanks, I do periodically check the emulators, the Burnout games tend to be the ones broken as they really pushed the hardware.
The PSP games run great on PPSSPP, but they're more PS2 games and feel quite rough. In fact, I originally had Burnout 3 on PS3 for the free online and it felt more laggy (even offline) than the Xbox version also, its what got me to pay for Xbox Live.
I'd always hoped we would get a full remaster of something like Burnout Legends (but with more tracks, ideally all of them from 1-4) but it seems EA just cares about Need for Speed.