The Toyota GR Supra A90/A91 and the BMW M2 G87 represent two compelling approaches to modern rear-wheel-drive sports cars, each with its own strengths and character. Both vehicles are powered by robust inline-six engines and cater to enthusiasts seeking engaging driving experiences, yet their performance data and lap times reveal distinct differences in how they translate power and handling to the track. 

The Supra, equipped with a 3.0-liter BMW B58 I6 engine producing 387 horsepower and 500 lb-ft of torque, pairs this with an 8-speed automatic transmission. It weighs in at 3,351 lbs and achieves a 0-60 mph time of 4.0 seconds with a top speed limited to 155 mph. Its relatively compact dimensions and lighter weight contribute to nimble handling characteristics. On the other hand, the BMW M2 G87 boasts a more potent 3.0-liter twin-turbocharged S58 I6 engine delivering 453 horsepower and 550 lb-ft of torque, coupled with a 6-speed manual gearbox. Despite its higher output, the M2 is heavier at 3,814 lbs but compensates with a quicker 0-60 mph sprint of 3.5 seconds and a higher top speed of 177 mph. 

When examining lap times across various tracks, the Supra often holds a slight edge on tighter, more technical circuits. For example, at Laguna Seca with light modifications, the Supra clocks a 1:37.760 compared to the M2’s 1:39.390, showcasing its agility and cornering prowess. Similarly, at Ridge Motorsports Park and Thunderhill East, the Supra maintains marginally faster times, indicating its chassis and suspension setup favor precision and responsiveness in medium-speed corners. 

Conversely, the BMW M2 G87 excels on faster, more flowing circuits where its additional horsepower and torque can be fully exploited. At the Nürburgring Nordschleife in stock trim, the M2 posts a significantly quicker lap of 7:38.706 versus the Supra’s 7:52.170, highlighting its superior power delivery and stability over long, high-speed sections. The M2 also outperforms the Supra at Road Atlanta and Florida International Rally & Motorsport Park, tracks that reward strong acceleration and top-end speed. 

The transmission choice further differentiates the driving experience. The Supra’s 8-speed automatic offers smooth and rapid shifts, aiding consistency and ease of use on the track, while the M2’s 6-speed manual caters to purists who value direct driver engagement and control, albeit with a steeper learning curve for optimal lap times. 

In terms of tire and setup, both cars run similar tire compounds in these comparisons, ensuring a fair assessment of their inherent capabilities. The Supra’s lighter weight and shorter wheelbase contribute to its sharper turn-in and quicker directional changes, whereas the M2’s greater mass and longer wheelbase provide planted stability at high speeds but can make it feel less nimble in tight corners. 

In summary, the Toyota GR Supra A90/A91 shines on technical tracks where agility and chassis balance are paramount, making it a formidable competitor in medium-speed, twisty environments. The BMW M2 G87, with its higher power output and manual transmission, dominates on faster circuits that reward raw speed and driver involvement. Both cars offer thrilling driving experiences tailored to different preferences, with the Supra leaning towards precision and ease, and the M2 emphasizing power and engagement. Choosing between them ultimately depends on the driver’s priorities and the nature of the circuits they frequent.