2004 Porsche 911 Carrera 4S & 911 Turbo Cabriolets

Contestant Number One: "Alex, I'll take Triple Plays for $400."

Trebek: "A Cezanne painting, supermodel Laetitia Casta, and the Porsche 911."

Contestant One: "Uh, what are things that need lots of oil?"

Trebek: "Noooo, I'm sorry. As they like to say in France, 'Vous etes une personne incroyablement ignorante.' Anyone else care to buzz in?"

Contestant Three: "Um, what are things that border on perfection?"

Trebek: "Correct! Or, as they like to say in France, 'Oui!' "

Talk about jeopardy: The current 911 is so good--so refined, so fast, so coolly capable whatever the driving mission--that Porsche engineers may well be wondering, "How are we ever going to top it?"

One answer, of course, is not to top the car, but to de-top it. Now available are two new open-air Porsches that actually enhance the already heady 911 experience: a Carrera 4S Cabriolet and, after a 14-year absence in the market, a new drop-top Turbo.

In most respects, the two cars are identical to their hardtop siblings. Powering the C4S Cabriolet is the famed naturally aspirated 3.6-liter flat-six, which develops 320 horsepower and can, Porsche claims, propel the car from 0 to 62 mph in 5.3 seconds. The Turbo romps with a twin-turbocharged and intercooled version of the six that ups output to 420 horsepower and drops 0-to-62-mph sprints to just 4.3 seconds. (If the Turbo's 189-mph top speed is too leisurely for your tastes, choose the X50 performance package, which boosts output to 444 horsepower.) Both cars are equipped with full-time all-wheel drive; with either version, buyers can choose from a standard six-speed manual transmission or a five-speed Tiptronic S automatic.