Noble M400

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The most notable differences from the M12 (a car which the M400 is largely based on) are the use of forged pistons, T28 turbos, a front anti-roll bar, stiffer springs, different shocks, Pirelli P Zero tyres, a smoother gear shifter, and a slightly narrower central tunnel as the driver now sits a bit more central than previous models. Exterior differences remain subtle. The colour scheme tends to incorporate anthracite (Gris) wheels, rear wing supports and wing ends but some examples maintain silver wheels and supports. The front splitter is now removed (Although many owners opt to have this put on). The main change is the addition of side pods to channel air into the engine and to create a visual impact. Air conditioning was an £1,995 option and adds to the weight. The interior has an added oil gauge that resides next to the boost gauge. Additionally, the Sparco Alcantara seats and trimmings differ from the other Nobles' (Alcantara is one third the weight of leather). The Noble M400 was awarded the car of the year award in 2005^[8] by one publication.^[who?] Only 75 examples were made.

Although, the M400 is no longer in production, the exclusive dealer for Noble in the US, 1G Racing in Ohio, USA (also known as Rossion), had obtained the production rights to the M400 from Noble Automotive, and has released an updated version named Rossion Q1. The Rossion Q1 uses an updated M400 platform, 1G's version of the M400 includes a redesigned aerodynamic shell, a new interior and an upgraded engine management system, upgrading the power output to 450 hp (336 kW).^[9] 0–60 mph (0–97 km/h) has dropped from 3.3 seconds to 3.1.^[10] Its top speed changed to 189 mph (304 km/h).