MSRP:$5,500,000 – $6,500,000
The 2026 GMSV S1 LM brings a distinctly motorsport-focused character to the road with a rear-mid-mounted 4.2-liter naturally aspirated V12 producing 720 hp and 347 lb-ft of torque. Power is sent to the rear wheels through a 6-speed manual transmission, while the Cosworth GMA engine uses DOHC, four valves per cylinder and direct-plus-port fuel delivery. With a 2,174-pound curb weight and a 3.02 lb/hp power-to-weight ratio, the three-seat supercar is built around a remarkably lightweight and high-revving powertrain.
Double-wishbone suspension is fitted at both ends, with vented disc brakes and 265/35 ZR19 front and 335/30 ZR20 rear tyres. The S1 LM measures 174.9 × 74.4 × 45.2 inches, with a 106.3-inch wheelbase and 64.4/61.9-inch front and rear tracks. Its 21.1-gallon fuel tank complements the compact dimensions, while AutoSpecsHub lists an MSRP of $5.5 million–$6.5 million.
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