The upcoming Alfa Romeo Spider planned to go on sale in 2015 will combine 125kW of power with a kerb weight of around 1000kg according the latest reports.

Alfa Romeo Badge

Autocar reports the Alfa Romeo Spider, which will share its underpinnings with the next-generation Mazda MX-5 and be built in Japan as part of a partnership finalised in January, will be powered by the Italian brand’s own hardware.

According to the report, the 125kW/250Nm turbocharged 1.4-litre four-cylinder MultiAir unit found in the current front-wheel-drive Alfa Romeo Giulietta will also motivate the rear-wheel-drive Spider, albeit installed longitudinally.

Alfa Romeo 1.4-litre MultiAir

The engine is to be mated exclusively to a six-speed dual-clutch automatic transmission in a move that matches the sole paddle-shifted gearbox available for the 176kW turbocharged 1.8-litre-powered hardtop 4C sports car.

While the report says the Italian and Japanese soft-tops will share windscreens, windscreen structures, front bulkheads, engine compartments and front and rear axles, the Alfa Romeo is set to be slightly longer. Both are believed to be around four metres long and 1.7 metres wide, though, and weigh between 1000-1100kg.

Sources also revealed that the new Spider’s design, headed by Alfa Romeo and Maserati design director Marco Tencone – responsible for the 4C and new Quattroporte and Ghibli sedans – definitely won’t be “retro” in design.

“The Spider has to be contemporary and must fit into the range with the modern 4C,” the source said.

Alfa-Romeo-4C-launch-edition

The Alfa Romeo Spider is expected to launch in late 2015, more than a year after the 4C’s expected local arrival in early 2014 and behind the next-gen Mazda MX-5’s early-2015 global launch.