RaptorGTR was a one-off, Mosler MT900–based supercar project promoted online in 2011–2012 as a single example, designated “2012 Mosler RaptorGTR #001 of 1,” and presented as having an 838 hp 7.0-liter twin-turbo V8, a claimed curb weight of 2,580 lb (1,173 kg), and extensive carbon-fiber construction including a reinforced safety cell. The project’s public-facing communications emphasized bespoke engineering details (race-spec six-speed manual,…