Can’t get away from the office? The office can get away with you. BMW has fitted a stretched version of its 7 Series saloon with an onboard communications and computer system that allows rear-compartment passengers to use Microsoft Office applications, send and receive e-mail, and surf the Internet — all while hurtling along the Autobahn. Currently a prototype, the four-wheeled workstation incorporates a flat-screen monitor that slides out of its housing at the push of a button, as well as an onboard printer and a cordless keyboard and trackball so you can type or click without getting tangled in cables during high-speed maneuvers. Back-seat bosses will be pleased to learn the car is equipped with an audio/video system — and, of course, the essential drinks fridge.