We're not sure why any top Mercedes-Benz model would need an engine transplant from another carmaker even if said powerplant is the almighty 5,562 cc (5.6-liter) naturally aspirated V8 from the Nissan GT-R Nismo GT1 racecar, but designers have their own way of thinking and this is how Mark Hostler envisioned his latest project, the Mercedes-Benz SL GTR Concept. Read more »