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Checked October 2026.
The BMW Z4 has been a two-seat roadster, a hatchback coupe, a folding hardtop and a soft top again. These 6 versions each give you a different engine, roof and set of things to check. Each section lists recent sold prices from Bring a Trailer and Cars and Bids auctions for that exact year, trim and gearbox. Condition, mileage and service records still move the price.
2006 BMW Z4 3.0si Roadster
The 3.0si Roadster is a good first Z4 for anyone who wants a manual convertible with a naturally aspirated six. For 2006 the 3.0si made 255 horsepower, and a six-speed manual was standard. You get most of the fun without the cost of the M engine. Car and Driver road test.
Buying focus: compare 3.0si roadsters with other 3.0si roadsters, not the 215-horsepower 3.0i. Check the electric power steering and the suspension bushings. A specialist buyer's guide covers steering column motor failures and worn rear trailing arm and front wishbone bushings on the non-M cars. BMWBLOG Z4 buyer's guide.
Recent sold prices: 5 manual 2006 3.0si Roadsters sold on Bring a Trailer from January to September 2026 for $15,550 to $22,000, with 24k to 75k miles. Sales: $17,000, 24k miles, Jan 2026; $22,000, 35k miles, Jun 2026; $16,000, 58k miles, Jun 2026; $15,550, 75k miles, Jul 2026; $16,000, 32k miles, Sep 2026.
2007 BMW Z4 3.0si Coupe
The 3.0si Coupe suits drivers who want a fixed roof, a hatchback and the same naturally aspirated six. The 2007 range included a 3.0si Coupe, and the 3.0si engine made 255 horsepower. Cars.com 2007 Z4 overview.
Buying focus: compare 3.0si coupes with other 3.0si coupes with the same gearbox. Check for electric power steering faults and ask for any VANOS diagnosis records. The same guide describes oil sealing rings that can wear a groove into the cam carrier, which can affect VANOS. BMWBLOG coupe buyer's guide.
Recent sold prices: 6 manual 2007 3.0si Coupes sold on Bring a Trailer from May 2025 to August 2026 for $13,100 to $24,500, with 45k to 132k miles. Sales: $20,500, 66k miles, May 2025; $13,100, 132k miles, Jun 2025; $21,000, 45k miles, Jul 2025; $22,222, 58k miles, Sep 2025; $24,500, 65k miles, Jan 2026; $13,500, 74k miles, Aug 2026.
2007 BMW Z4 M Coupe
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The M Coupe pairs the high-output 3.2-liter six with a more focused chassis and a fixed roof. The Z4 M's 3.2-liter engine makes 330 horsepower. This is the specialist pick, and service history matters most here. Cars.com 2007 Z4 overview.
Buying focus: compare only M Coupes. Ask for proof of valve clearance checks, which the S54 needs every second service, and any connecting rod bearing history. A specialist buyer's guide reports failed rod bearings on some higher-mileage Z4 M cars. BMWBLOG Z4 M buyer's guide.
Recent sold prices: 7 M Coupes from 2007, all 6-speed manuals, sold on Bring a Trailer from February to July 2026 for $29,250 to $66,500. The 6 cars with 24k to 71k miles sold for $29,250 to $47,250, and a 5k-mile car brought $66,500. Sales: $44,250, 27k miles, Feb 2026; $34,500, 71k miles, Mar 2026; $44,270, 34k miles, Apr 2026; $66,500, 5k miles, Jun 2026; $47,250, 24k miles, Jul 2026; $29,250, 70k miles, Jul 2026; $39,000, 24k miles, Jul 2026.
2011 BMW Z4 sDrive35is
The sDrive35is is the high-output turbocharged version of the folding hardtop Z4. It makes 335 horsepower, and adaptive M suspension came standard. It suits a buyer who wants easy speed and a hardtop over an earlier soft top. Car and Driver on the 2011 sDrive35is.
Buying focus: compare sDrive35is cars with each other, not the regular sDrive35i. Pay close attention to the N54 high-pressure fuel system. BMW's service bulletin for N54 E89 Z4s covers long cranking before the engine starts. BMW fuel pump bulletin.
Recent sold prices: 4 sDrive35is cars from 2011, all with the 7-speed dual-clutch gearbox, sold from January 2025 to March 2026 for $16,500 to $31,100, with 27,800 to 75k miles. Sales: $19,000, 75k miles, modified, Jan 2025, Bring a Trailer; $31,100, 27,800 miles, Mar 2025, Cars and Bids; $24,750, 52,500 miles, Oct 2025, Cars and Bids; $16,500, 67k miles, Mar 2026, Cars and Bids.
2012 BMW Z4 sDrive28i
The sDrive28i is the turbocharged four-cylinder option. The 2012 car uses the N20 engine with 240 horsepower, and a six-speed manual was available. BMWBLOG 2012 first drive.
Buying focus: compare manual and automatic cars separately. Check whether the engine falls under BMW's N20 timing chain and oil pump drive bulletin, and ask for service records. Some 2012 Z4s were also part of an electric power steering recall, so check the VIN. BMW chain bulletin and steering recall summary.
Recent sold prices: too few sales for a range. Manual: 1 car sold twice on Cars and Bids, $29,000 with 61,800 miles in Jul 2025 and $18,251 with 68k miles in Aug 2026, no reserve. Automatic: 1 recent sale, $22,000, 8-speed automatic, 62k miles, Oct 2025, Bring a Trailer.
2020 BMW Z4 M40i
The M40i pairs a turbocharged inline-six with an eight-speed automatic and a soft top. BMW rated the 2020 M40i at 382 horsepower. Pick it if modern speed and equipment matter more to you than a manual. BMW USA press release (archived).
Buying focus: compare 2020 M40i cars only, then go through the maintenance and repair history. Some 2019 and 2020 Z4s were recalled because a headlamp adjustment plug may have gone in the wrong spot, so check the VIN and whether the work was done. NHTSA recall document.
Recent sold prices: too few sales for a range. 2 recent sales on Bring a Trailer, both 8-speed automatics: $37,505, 44k miles, Aug 2025 and $25,500, 94k miles, Sep 2026.
Parts, DIY and inspection
Get a pre-purchase inspection that separates normal wear from engine or steering faults. On the earlier cars, bushings and electric steering can turn a cheap car into an expensive one. On the N54 and N20 cars, start with the factory bulletins above. Engine, steering and roof repairs can need a shop. Routine maintenance and condition checks are realistic DIY jobs for experienced owners.
How we picked
The list covers a naturally aspirated roadster, 2 coupes, the high-output folding hardtop, a four-cylinder car with a manual option and a modern six-cylinder roadster.