Mosler MT900 History

Mosler Automotive revealed the MT900 in prototype form in 2001, designed in collaboration with stylist Rod Trenne. The car was built on a carbon-fiber chassis with tubular steel front and rear subframes, mid-mounting a GM LS-family V8. Early cars used the 5.7-liter LS1 producing 350 hp; from around 2003 the street MT900S received the Corvette Z06-derived LS6 making 435 hp. The entire package weighed approximately 2,500 lb — a remarkable figure for a road-legal supercar of the era.

Performance was stratospheric relative to cost. Car and Driver documented a 0–60 mph time of 3.1 seconds and a 0–100–0 mph run of 10.98 seconds for the MT900S — besting the McLaren F1 LM's then-benchmark 11.15-second figure. George Lucas reportedly took delivery of the first MT900S. From 2007 onward the car was updated with the 7.0-liter LS7. Approximately 20 road cars and up to 30 racing versions were completed across the MT900 program.

The racing MT900R was equally successful. At the 2003 Rolex 24 Hours at Daytona it won its class, and Rollcentre Racing scored three consecutive one-two finishes in the 2003 British GT Championship with the type. Total production of all MT900 variants was roughly 35 road cars and 50 race cars combined, though figures vary by source. Mosler Automotive closed its factory in May 2011; remaining assets and the MT900 design were acquired by Rossion Automotive in June 2013, ending the Mosler marque.