With the vehicle's official debut at 2013 Auto Shanghai just days away, Mercedes-Benz has unveiled the first images of its GLA concept. The stylish compact luxury crossover shares a wheelbase with all three of the German automaker's most recent front-wheel-drive models, made up of the second-generation B-class, third-generation A-class and CLA sedan. The GLA concept measures 172.4 inches long, 77.6 inches wide and 61.8 inches tall, and rides on 20-inch alloy wheels with 255/45 R20 tires. Power comes from an inline-four 2.0-liter turbo engine, producing 208 horsepower and 258 lb-ft of torque. It's mated to a seven-speed dual-clutch gearbox and multi-plate clutch all-wheel drive system. Check out more looks in the gallery below, and look for the production version of the vehicle to be revealed in September at the Frankfurt Motor Show.