Motorsports this weekend: November 19-20

North America TV coverage shown where available. All times Eastern.

NASCAR: The final race of the season this weekend at Homestead-Miami Speedway will see one of Tony Stewart, Jimmie Johnson, Carl Edwards, or Greg Biffle crowned as the 2006 Nextel Cup champion. Stewart holds a 51 point lead going in, and is odds-on favorite to walk away with the Cup. (Sunday, NBC, 3pm ET)

Macau Grand Prix: The 52nd running of the legendary Macau Grand Prix (pictured) is this weekend, with races for FIA F3, the World Touring Car Championship, and motorcycles. Winning the headlining Formula 3 race on the armco-lined streets of Macau has kickstarted the careers of many Formula 1 drivers, including Ayrton Senna, Michael Schumacher and David Coulthard. Lots of info and pics here.

A1GP: The international series is at Sepang, Malaysia this weekend, with many teams electing to field ex-F1 drivers to boost their fortunes, including Jos Verstappen who drove Team Netherlands to the top of the charts in Friday practice. (DirecTV/Setanta Sports, Sunday, 12am ET)

FIA GT: The final race of the FIA-GT championship was held Friday at the Dubai Autodrome. The Ferrari 550 Maranello of Lamy & Gardel won, 0.077 seconds ahead of the Maserati MC12 of Bartels & Scheider. The C5R Corvette of Longin, Kumpen and Hezemans was third.

SCCA Runoffs: The annual Runoffs were held for the final time at Mid-Ohio in September, before moving to Topeka, Kansas for 2006. TV coverage on SPEED Channel this Sunday of the Showroom Stock B and Sports 2000 classes. (Sunday, 5pm - 7pm) Coverage continues next weekend, with four races scheduled. Guaranteed great racing from the Indy 500 of grassroots motorsports.