The Corvette Stingray 1LT starts with 18-inch front and 19-inch rear wheels, Brembo brakes, xenon headlights, heated mirrors, keyless ignition and entry, dual-zone automatic climate control, cruise control, leather upholstery, eight-way power front seats and a power tilt-and-telescoping steering wheel. Cabin technology highlights include OnStar (with this year's 4G LTE data connection with WiFi hotspot capability), Bluetooth phone and audio connectivity, an 8-inch color driver information display, an 8-inch central touchscreen with Chevy's MyLink infotainment interface, a rearview camera and a nine-speaker Bose sound system with two USB ports, an auxiliary audio jack, an SD card reader and satellite radio. The Stingray Z51 1LT adds 19-inch front and 20-inch rear wheels, exterior aero trim, larger front brakes, slotted brake rotors, sportier suspension tuning, revised transmission gear ratios (manual only), an electronic limited-slip differential, a differential cooler, dry-sump oiling for the V8 engine and a dual-mode performance exhaust (optional on non-Z51 Stingrays). Standard safety features on the 2015 Chevrolet Corvette include antilock disc brakes, traction and stability control, side-impact airbags and a rearview camera. Also standard is OnStar, which includes automatic crash notification, on-demand roadside assistance, remote door unlocking and stolen vehicle assistance.