The saloon version of the car, which is the only one that can reach 5.9 seconds, has a 2 liter turbocharged petrol engine to aid the electric motor, but the CO2 emissions still importantly fall into the lowest tax bracket.
A top speed of 155mph is quite something with an extra 200kg of electric motor on board, and the Mercedes will be an assured comfortable ride to get there.
VOLVO V60 PLUG-IN HYBRID (5.7 SECONDS)
Apparently the irony of coupling a diesel engine with an electric motor is lost on Volvo, but it is certainly a marriage that gives the V60 Plug-In some oomph. While a diesel engine is more fuel efficient than a petrol one, it turns out that it’s also significantly more expensive to run, possibly counteracting the tax break that comes with the eco-status.