The petrol-electric hybrid SUV is the acceptable face of Chelsea tractordom. Connotations of unacceptable girth, gas guzzling and general global destruction have, of late, conspired to make “SUV” something of a dirty word. Indeed, it’s a good job that cars in said category inevitably come with air-conditioning, since it obviates the need for drivers to open the window and risk a serious, Richmond-upon-Thames traffic-light flecking from the vitriol-driven spittle of incensed, bicycle-propelled