Tart-up for Tesla Roadster

Tesla, fresh from its launch on the stock market, is tarting up the Roadster: this 2.5 edition gets a reshaped grille and a new rear diffuser, improved seats and soundproofing, and better-quality interior trim, plus revisions to control software allowing “spirited driving in exceptionally hot climates.” New options include a rear-view reversing camera and touch-screen sat nav, and new wheel choices. Some of these upgrades can be retro-fitted to existing Roadsters.