Have you considered the Mazda CX60? Only PHEV available on MB and was heavily criticised on release, as described by Glos guy. Now heavily revised, with spring and damper rates adopted from big brother cx80, new EV/ gearbox integration etc. not perfect, but made in Japan build quality, no touchy feely bs buttons and Toyota tech hybrid engine. A lot of car from £3999 ap. the long bonnet is there to accommodate a straight six 3.3 diesel here and petrol in the USA. Tests say it achieves 50 mpg with ease for a big torquey lump and makes you wonder why a 1.5/1.6 PHEV cannot get close on a run.