Buying a BMW Z4 (G29): What to Know First

The G29 is the last of the Z4 line, a soft-top inline-six roadster with a finished production story. Here is what to weigh before you buy one.

The G29-generation BMW Z4 is a two-door, soft-top roadster built from 2018, and with production ended in March 2026 it is now a complete story^[1]. That matters to a buyer: the range is fixed, the variants are known, and there is no next model year to wait for. What you see on the market is what the G29 will ever be.

The range, briefly

Output across the G29 range spans 197 to 382 hp, and at the top of it sits the M40i with BMW’s B58B30 inline-six^[1]. Every Z4 drives its rear wheels, and depending on year and market the car came with a 6-speed manual, the ZF 6HP automatic, or the 8-speed ZF 8HP^[1]. If a specific transmission matters to you, confirm it on the actual car rather than the listing headline — gearbox fitment varied across the run.

One more piece of context: the G29 shares its platform with the Toyota Supra, and the two were built together in Austria^[1]. Some buyers care, some do not, but it is part of what the car is.

What to check before money moves

• The roof. This generation returned to a soft top^[1]. Operate it fully both ways, inspect the fabric for wear at the fold lines, and check the seals for water traces in the cabin and trunk.
• Service history. A complete, stamped or digital record is worth paying for. Gaps in the file usually cost more later than they save now.
• A pre-purchase inspection. Have an independent specialist put the car on a lift. An hour of a professional’s time is the cheapest insurance in this process.
• Documentation. Match the VIN across the title, the service record, and the car itself, and confirm any options the seller claims.

Where to look

Start with the full BMW Z4 database page for the specification detail, then browse live Z4 listings to see what the market is actually asking. Compare a few cars before you commit to one — with a closed production run, patience tends to be rewarded.