Earlier rumors point to two new Z models joining the BMW lineup for 2017: BMW Z5 and Z7.
Automobile Magazine reports that the Z5 is the first result of BMW’s sports car collaboration with Toyota, which will also produce the next iteration of the Scion FR-S.
Furthermore, the same publication says the concept version of the BMW Z5 will be unveiled next year with production versions to follow during the 2018 model year—the Toyota as a hardtop coupe, the BMW as a roadster with a soft top. The new sports car architecture that serves both models is a highly scalable matrix that revolves around a single fixed point, the front firewall.
The BMW Z5 is expected to feature a more radical front-mid-engine bias. Lightweight materials will be used across the Z4 and the target weight is 3300 lbs.
Under the hood, it will feature a 2.0 liter four-cylinder turbocharged engine with three power stages: 190 hp, 245 hp and 270 hp. The engine will be matted to a ZF 8-speed automatic or six-speed manual.
The publication goes even further by saying that a BMW Z5M would be on the table as well. It would feature the 425-hp turbo six from the new 2015 BMW M3 and M4.
Nothing has been confirmed by BMW so for now, take everything with a grain of salt.