BMW 8 Series Convertible begins testing ahead of early 2019 debut

BMW is undertaking development of a further model variant of the new BMW 8 Series coupe. With intensive function trials and test drives between Las Vegas and Death Valley in the USA, the critical phase in the series development for the upcoming 8 Series Convertible has now begun.

The results of so-called hot climate testing in the Western United States provide important insights into the functional safety of mechanical and electronic components under extreme weather conditions.

Temperatures of more than 50 degrees Celsius, extreme dust formation on the edge of the desert, stop-and-go traffic on the Las Vegas Strip, gravel tracks around Mount Whitney and long-distance journeys between the Pacific coast and the Rocky Mountains characterise the challenging test programme for the new BMW 8 Series Convertible on its way to production.

The new 8 Series convertible is expected to share the same drivetrain as its coupe counterpart, which is available with a petrol and a diesel powerplant, both paired to BMW’s xDrive rear-biased all-wheel drive system and 8-speed automatic transmission.

The M850i xDrive variant is motivated by a twin-turbo 4.4-litre V8 engine that produces 390 kW/530 hp, which is on tap between 5,500 and 6,000 rpm. Maximum torque of 750 Nm (553 lb-ft) is available over a wide rev range from 1,800 to 4,600 rpm.

The 840d xDrive is powered by the turbocharged 3.0-litre six-cylinder in-line diesel unit that delivers a maximum output of 235 kW/320 hp and peak torque of 680 Nm (501 lb-ft), which is available from just 1,750 rpm.

BMW’s 8 Series convertible is expected to debut in early 2019.