The Mercedes McLaren SLR is one of the most incredible supercars of all time. But how does this "Old McLaren" compare to a NEW McLaren? We lined the SLR up against the company's entry-level supercar, the 540C for a drag rag race, a rolling race and a 0-100-0 race to see wether old or new would come out on top.

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Mercedes McLaren SLR vs McLaren 540C: DRAG RACE & 0-100-0 Race