A 2018 BMW Z5 development car has been spotted testing with new rear bodywork, offering the best glimpse yet of the future production model's final shape.
The car's tailgate sports a lip spoiler and features narrow lights, with a central brake light in the middle. Two exhaust tailpipes can be seen poking out from under the bumper.
Our sources believe the car, which will be a successor to the Z4, will make use of a hybrid drivetrain and come with optional four-wheel-drive.
The nose of today's car looks unchanged from that of earlier development models, suggesting the final production car will feature a pair of wide front kidney grilles. They appear longer than the Z4's grilles, and are joined by familiar BMW features such as a lengthy bonnet and short overhangs.
Take no notice of the headlights of the test car - they're temporary units. Expect the orange indicators and main beam bulbs to be more elegantly designed in the final production model.
It’s the fourth time we’ve seen the new model in the metal since its arrival was announced by BMW in 2015. The soft-top, two-door model is expected to be revealed late this year or in early 2018.
It's thought that some of the car's underpinnings will be shared with a future Toyota Supra successor, following Toyota and BMW's announcement that the two companies would team up to develop a new sports car platform.
While the BMW will be a convertible, the Toyota will be a spiritual successor to the Supra and as such will wear a hard top, as shown by spotted development cars. Inspiration for the Toyota's design has been taken from the striking FT-1 concept, first seen at the Detroit show in 2014.