Ann Arbor — With instant torque, innovative electric platform, and high-tech interior, Silicon Valley-based Tesla remade perceptions of the luxury automobile. Oak Park-based Bollinger Motors wants to do the same for an entirely different segment: Class 4 trucks. Step on the throttle of the eight-ton Bollinger B4 box delivery truck and it squirts forward like a Tesla. Turn into a roundabout and it stays planted, thanks to the huge, 158-kWh battery located low between the frame rails. Turn into a parking lot and its innovative platform allows for tight turning. It’s ideal for central-city deliveries, and it’s a long way from the off-road-focused, Bollinger B1 and B2 Hummer fighters that CEO Robert Bollinger envisioned when he founded the company eight years ago.