That’s the rumor currently in our inbox and sites around the web thanks to BMW über tipster Scott. While it’s early days for the next M5/M6 program, according to the source BMW is investigating returning to the V10 but with turbos helping to deliver much more than the 500 hp of the E60 and E63 M5 and M6.

E60_M5_2

Speaking of the next generation M5, there’s a rumor that M may re-introuce the M5 wagon due to strong sales of Audi’s latest RS6 Avant in Europe and the UK.