Games where real-life motorcycles can be raced alongside real-life cars?
I can only name:
PGR4
TDU1
TDU2
Midnight Club LA
these games have both bikes and cars but they can't be raced together AFAIK:
Driveclub
The Crew
Are there others?
Mario Kart?
"Ride" 1 and 2 are the best bikes game I've ever played, but no cars