Automakers take all kinds of prototypes to the Nurburgring, including SUVs and minivans, because the 12.8-mile (20.6 km) track is as useful for testing a car’s endurance and its handling balance.

G-Power upgraded the M3 Touring’s 3.0-liter engine, boosting power to 789 horses. With bigger turbos, a new exhaust, and re-tuned software, the wagon hits 205 mph. The display car is finished in ...

BMW is testing the future electric M3 around the Nurburgring Nordschleife in Germany. The model will have up to four electric motors and over 1,000 horsepower in its most powerful guise.