If there is one car that epitomizes Porsche's performance heritage, then the legendary 911 Turbo is it. As expected, the new Turbo extracts more power from the 3.6L flat-6, which now produces 480-bhp/457 lb.-ft. A new VTG (variable turbine geometry) turbo fattens the power and torque curves and improves throttle response. The increased power is routed to all four wheels on demand, via the PTM (Porsche Traction Management) system. Transmission choices include a 6-speed manual or Tiptronic S automatic. Acceleration times from 0-100 km/h (62 mph) are actually 0.2 seconds faster (3.7 seconds) for the Tiptronic S vs. the manual. This is first Porsche sports car that accelerates faster to 100 km/h with an automatic. Top speed is 310 km/h (192 mph). Standard PASM (Porsche Active Handling System) can adjust handling characteristics for the road (Normal mode) or track (Sports mode). The already superb braking system is enhanced with the addition of 6-piston front calipers, backed up by 4-piston rear calipers. Despite all this sophisticated equipment, the new 911 Turbo is lighter than the previous car. Enthusiasts should consider the Sports Chrono Package, which allows temporary turbo overboost and raises torque output to 680 N-m (501 lb.-ft.). Midrange acceleration (50-75 mph) for the Sports Chrono Package drops to 3.3 seconds from 3.5 seconds (Tiptronic S). Despite the fierce sports car competition from all fronts, Porsche has done a superb job keeping the 911 Turbo near the head of the pack.