As can be expected from an eight-cylinder powered luxury flagship sedan, the INFINITI M56 exhibited peak luxury style and performance from the brand. Featuring exterior influence from INFINITI's ...

100% of drivers recommend this car What is the MPG of the 2012 INFINITI M56? The 2012 INFINITI M56 offers up to 16 MPG in city driving and 24 MPG on the highway for a combined rating of 19 MPG.

Infiniti's "swoopy anger" design language has made it to the M line, and InsideLine got some seat time in the V8-powered, rear-wheel drive, M56 and the six-cylinder, all-wheel-drive M37x.