The drivetrain remains unchanged: A 179-horsepower, 2.5-liter four-cylinder engine is mated to either a six-speed manual or new, faster-shifting six-speed automatic transmission. The Scion's engine makes more power than the standard motor in either the Hyundai Veloster or Honda Civic Coupe, but less than both of those vehicles' optional engines; there is no high-powered option for the tC. Scion has retuned the suspension for more aggressive handling as well as stiffened the body structure for 2014.Scion says that interior materials have been upgraded, and that a 6.1-inch touch-screen audio system will now be standard, not only in the tC but in all Scions. An uprated premium audio system featuring Scion's cloud-based Aha infotainment system will also be available, bringing location-based apps like Yelp and TripAdvisor into the car. The new tC will hit dealerships in June.