The fortwo cabrio's top opens and closes in 12 seconds, even at freeway speeds.

Smart has introduced the new fortwo cabrio at the Frankfurt Motor Show.Developed jointly with industrial partner Renault, the cabriolet stretches approximately 106 inches long, 66 inches wide and 61 inches tall, dimensions that make it roughly the same size as the outgoing model. The city car boasts an impressive 22.8-foot curb-to-curb turning radius.

The cabrio gets a power cloth soft top that can either slide back a few inches like a sunroof, or fully retract and fold above the cargo compartment. Roof bars that can be removed and stowed away in a compartment neatly built into the tail gate give the occupants the full convertible experience.

About 0.8 inches thick, the top fully retracts in 12 seconds at the push of a button even if the cabrio is driving at freeway speeds. Alternatively, it can be opened or closed from a distance thanks to a button on the key fob. It is available in blue denim, red and black.

To ensure the fortwo cabrio is as safe as the fortwo hardtop, smart has added a long list of reinforcements including a large steel cross that runs under it and tubes made of high-strength, hot-formed steel inside the A-pillars. Additionally, torsional rigidity has been improved by about 15 percent over the outgoing model.

Buyers can choose from four trim levels called pure, passion, prime and proxy, respectively. The list of standard features includes LED daytime running lamps, Bluetooth connectivity, automatic A/C, power windows, power steering, cruise control, an alarm and a multi-function steering wheel.

The topless fortwo is exclusively offered with a Renault-sourced turbocharged 0.9-liter three-cylinder engine that makes 89 horsepower at 6,200 rpm and 100 lb-ft. of torque starting at 2,500 rpm. A five-speed manual transmission finally comes standard, and a six-speed dual-clutch automatic unit is available at an extra cost.

The smart fortwo cabrio is scheduled to hit showrooms next summer as a 2017 model. Pricing information will be published in the weeks leading up to its on-sale date.

Live images by Ronan Glon.