While the 2010 Ford Mustang was supposed to make its official debut at this week’s L.A. Auto Show, details on the restyled Mustang have hit the web early. Featuring a completely new exterior, thoroughly updated cabin, and a refined engine lineup, the facelifted car is primed to take on the still-new Dodge Challenger and the upcoming Chevrolet Camaro. The biggest change to the iconic muscle car is its new interior, which sports a more athletic look and hunkered down stance. The front end on all models is lower and appears wider with strong wheel arches pushing up and out of the muscular fenders. Dynamic character lines emerging from above the grille sweep rearward into a more powerful, sculptured hood.

As for the powertrain lineup, the 2010 Mustang will be available with a 4.0-liter V6 engine, which is rated at 210 hp and 240 lb.-ft. of torque, and a 4.6-liter V8 engine, which is rated at 315hp and 325 lb.-ft. of torque. Each is mated to five-speed manual or five-speed automatic transmissions.

For the interior, the manual model features a genuine polished-aluminum transmission knob and a leather-wrapped shifter, which support a short-throw performance original designed for the Bullitt model. The instrument panel and console now flow as one shape, and the seats and arm rests have softer materials with high-quality stitching. The new center stack design adds the latest version of Ford SYNC, with new features 911 Assist and Vehicle Health Report. Drivers also can customize their ambient and instrument lighting through the My Color system, which features 125 color options. Check out more pics here.