2017 AUDI A4: Audi's most popular luxury sedan, the A4, is completely redesigned for 2017. Buyers have their choice between the A4 Premium, Premium Plus and top-tier Prestige trim levels. Sole powertrain at launch is a 252-horsepower turbocharged 2.0-liter TFSI engine that mates to a seven-speed dual-clutch automatic transmission. Front-wheel drive is standard and Audi's quattro all-wheel drive is optional. According to Audi, the new A4 can race from 0-to-60 mph in 5.7-seconds. The five-passenger cabin boasts leather seating surfaces, LED ambient lighting, three-spoke multifunction flat-bottom steering wheel with shift paddles, aluminum inlays, and ventilated front sport seats with power lumbar adjustment. Adaptive cruise control with stop and go and traffic jam assist is available, as is the head-up display that projects the readout of the car's speed, navigation and assistance systems directly onto the windshield. Audi's pre-sense city technology can detect vehicles and pedestrians at speeds of up to 52 mph and can alert the driver to a potential collision and apply automatic braking to help minimize or prevent a collision. Further hi-tech content is the side assist system that employs optical warnings with radar sensors that assists steer your A4 away from another vehicle present in your blind spot. The dashboard features a 12.3-inch digital display that boasts Google Earth mapping with 3D satellite imagery, a Wi-Fi hotspot, Twitter integration, local traffic, news and more.