Porsche is introducing its sixth-generation 911 Turbo this week at the annual Geneva Auto Show, but the German engineers already are testing the next new model variant, the 911 Turbo Cabrio.
The all-wheel-drive convertible will share most major features with the hardtop, including a twin-turbocharged 3.6-liter six-cylinder engine that makes 480 horsepower and can be ordered with either a six-speed manual or five-speed Tiptronic automatic gearbox.
Porsche estimates the 911 Turbo Cabrio will be only marginally slower than the hardtop, which rockets from 0-60 in 3.7 seconds with the manual transmission.
The 911 Turbo hardtop model goes on sale this summer in North America, priced at $122,900.
The 911 Turbo Cabrio is expected to follow next spring, as an early '08 model, for about $10,000 more than the coupe.