2019 Mercedes-Benz A-Class saloon has lowest wind resistance yet.
You have to go back to the Audi 100 of 1982 for the start of aerodynamics being responsible for the design of cars with a view to efficiency rather than looks or performance. That generation of Audi had a coefficient of drag which was close to 3 and was ground breaking at the time.
Drag coefficient combined with the frontal area of a car are used to calculate the efficiency of a vehicle and the new A-Class, with a smaller front end has surpassed the class leading BMW 5 series.
At the moment, little is known of Hybrid and electric intensions, but as Mercedes Benz continue to develop the in-the-engine electric motor/generator, expect some amazing results.
At launch, early in 2019 in the UK, we will have choice of a 1.3 lite Turbo, that is 161 bhp but will average 54 mpg and a diesel that is development with Renault and is expected to average 71mpg with incredibly low emissions.
Expect the new C Class to be “same but bigger” when it arrives with a view to being class leading.