The C300 comes standard with 17-inch alloy wheels, automatic headlights and wipers, auto-dimming mirrors, dual-zone automatic climate control, a tilt-and-telescoping steering wheel, 10-way power front seats (with four-way lumbar), driver memory settings, MB-Tex synthetic leather upholstery and a 60/40-split-folding rear seat. Electronic features include the COMAND interface with a dial controller and a new smartphone-style touchpad interface that overlap many functions, a 7-inch display screen, Bluetooth phone and audio connectivity, an in-car WiFi hotspot and an audio system with a CD player, USB and auxiliary audio jacks and HD radio. Additional options for the C300 4Matic are grouped into several packages. The Premium package bundles LED headlights, heated front seats, satellite radio and a premium 13-speaker Burmester sound system. The Interior package adds leather upholstery, ventilated front seats and ambient cabin lighting, while the Multimedia package brings a navigation system with voice control, a rearview camera and an 8.4-inch display screen. Every 2015 Mercedes-Benz C-Class comes standard with antilock brakes, stability and traction control, front side airbags, front pelvic airbags (which deploy lower than the side airbags), a driver knee airbag, full-length side curtain airbags and a rearview camera.