Mercedes S-Class Plug-In Hybrid on sale now
The new Mercedes S 500 Plug-In Hybrid will do 101mpg and emit just 65g/km of CO2 The super-economical Mercedes S 500 Plug-In Hybrid will cost from £87,965, be exempt from road tax, and return up to 101mpg. That makes it the most economical Mercedes S-Class ever, despite being able to do 0-62mph in 5.2 seconds