Our spy photographers have snapped confirmation that a cabriolet version of the stunning new Audi TT-RS is under development in Germany. These latest pictures of the TT-RS Roadster come just days after we brought you these images of Ingolstadt’s blistering TT-RS coupe running hot laps of the Nurburgring. Both models are due to launch early in 2010, with prices starting at around £45,000 for the coupe.The TT-RS Roadster is meant to be the ultimate TT, and will use the same engine as its coupe counterpart - a 2.5-litre turbocharged direct-injection five cylinder motor that sources in Audi claim is packing 343bhp. The roadster will be fitted with Quattro four-wheel drive, and the body will be strengthened to make sure it delivers the dynamic qualities necessary in an RS model. Insiders reveal that keeping the high-performance TT’s weight down is also a big priority for Audi engineers. To aid handling, the standard TT’s magnetic dampers could be binned in favour of more performance-orientated alternatives - and carbon ceramic brakes are likely to be on the options list.Our sources suggest the TT-RS coupe will be able to dismiss 0-62mph in under five seconds, and the Roadster should offer near-identical performance, along with a limited 155mph top speed.