Lawrence does not alter the engine of the mercedes, and its retrofitting is concentrated in the shape, interior, hang, brake system and safety performance enhancement, including a thick, straight-down silencer, full steel plate chassis, air hang, larger wheels and tyres. The relatively distinctive features are: unique perturbations and high flat-bread tyres, which, in conjunction with the lawrence-specific wheelwork, have created a sense of control and security; thicker straight platoons, full steel plate bottoms, air-pressure hangs, which have increased the resilience of vehicles in driving and raised the safety factor to a new height for the car chassis; the manual sewing of high-level leather and black peach wood decorations, which can only be found on mercedes 600; high-grade tyres, rollers; and some rare electronic equipment。