Abt Sportline has unveiled their new tuning program for the facelifted Audi A4 / S4.For a sportier appearance, customers can order a front spoiler, revised side skirts and a rear bumper insert. There's also front fender vents, a trunk-mounted spoiler, a sports exhaust system and 19- or 20-inch alloy wheels. Under the hood, the 2.0-liter TFSI four-cylinder can be tuned to produce 275 PS (202 kW / 271 hp) instead of the standard 211 PS (155 kW / 208 hp). Likewise, the 3.0-liter TFSI V6 can be upgraded to develop 435 PS (320 kW / 429 hp) - an increase of 102 PS (75 kW / 101 hp). This enables the model to accelerate from 0-100 km/h in 4.8 seconds and hit a top speed of 282 km/h (175 mph).On the diesel side, there's a performance package for the 3.0-liter TDI which enables it to churn out 282 PS (207 kW / 278 hp) and 560 Nm (413 lb-ft) of torque - an increase of 37 PS (27 kW / 36 hp) and 60 Nm (44 lb-ft).