The most powerful production SLK of all time, the new 2012 SLK 55 AMG, has arrived in Britain and is available for to order with an on-the-road price of £54,950 (equal to US$84,630 / €66,200).
Lying under the hood of the AMG-branded SLK is a naturally aspirated, direct-injection V8 engine with a displacement of 5.5-liters that produces 421-horses at 6,800rpm and 540Nm (398.2 lb-ft) of peak torque at 4,500rpm.
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