Honda S2000 vs BMW Z4 M Roadster: The Rarer Car Is the Cheaper One

Honda S2000 vs BMW Z4 M Roadster is a comparison that looks lopsided on a spec sheet and turns upside down on a production sheet. BMW built 3,042 Z4 M Roadsters for North America. Honda sold roughly 66,500 S2000s in the United States alone, more than 20 times as many. Yet in October 2026 the common Honda is the more expensive car, and by a meaningful margin. That gap, not horsepower, is the story collectors should be reading.

Both cars are manual-only, naturally aspirated, rear-drive roadsters from the mid-2000s, and both were built to be driven hard. Honda launched the S2000 as a 2000 model to mark its 50th anniversary and priced it at $32,600, below the Porsche Boxster, Mercedes-Benz SLK and BMW Z-car it was aimed at. BMW’s answer, the Z4 M Roadster, arrived for 2006 with the S54 six-cylinder from the E46 M3 and a price near $50,000. They compete for the same garage, but they ask very different things of an owner. (This is a two-car comparison on purpose. The Lotus Elise is a natural third rival, but I could not verify a reliable production total for U.S.-market Series 2 cars, so it stays out rather than being guessed at.)

Two engines, two temperaments

The S2000’s F20C was a 2.0-liter four that Honda promoted as making 124 horsepower per liter, a record for a naturally aspirated production engine at the time. It sat behind the front axle for roughly 50:50 weight distribution, and it revved to 8,800 rpm in the first-generation AP1 cars. The 2004 AP2 update stretched the stroke to 2.2 liters, which added torque (162 lb-ft against 153) but lowered the redline to 8,000 rpm and shortened the first five gear ratios. Honda also softened the suspension tuning that had made early cars famously tail-happy.

The Z4 M took the opposite route. The S54 is a 3.2-liter inline-six, 330 horsepower in U.S. trim against 343 in Europe, with 262 lb-ft of torque. The M Roadster used the E46 M3’s hydraulic steering rack and was sold in North America only with a six-speed manual. It is a much heavier car, 3,277 pounds as measured by Edmunds against roughly 2,800 to 2,860 for an S2000, and Edmunds recorded 0–60 mph in 5.0 seconds with a 110-foot stop from 60. Period tests of the Honda ran roughly 5.2 to 5.8 seconds. Straight-line performance is close enough that the choice is about character: the Honda asks you to live above 6,000 rpm, while the BMW pulls hard from low in the rev range.

Side-by-side: specifications and market

Rarity, options and originality

Neither car offered much in the way of factory options, so condition, mileage and documentation decide originality. Honda sold the S2000 as essentially one trim with a few years of color changes (Spa Yellow from 2001 and Suzuka Blue from 2002, for example) plus a factory hardtop as an accessory. The one genuine variant is the Club Racer. Honda sold 668 CRs for 2008 and 31 for 2009, 699 in all, hoping for 2,000. The CR cut about 90 pounds, replaced the soft top with an aluminum hardtop, and added a stiffer chassis, quicker steering and a rear wing. It is the S2000 collectors treat as a separate market.

The Z4 M’s scarcity is built into the production number, and it has its own sibling: BMW also built 4,275 Z4 M Coupes, 1,815 of them for North America. Roadsters have the softer ride; the coupe is the stiffer, more track-oriented body. For either car, the originality questions are the ones that matter on any modern enthusiast car: unmodified suspension, original wheels, intact service history, and no stories about track days or rebuilt engines. Hagerty’s S2000 guide notes that a factory hardtop in the right color can add thousands to an asking price, but only if it is original to the car. For a Z4 M, look for evidence that the early-life service, discussed below, was done on schedule.

Reliability, maintenance and parts

Honda’s reputation is the S2000’s quiet advantage. Hagerty’s valuation notes describe build quality and reliability as remarkable for the period and say maintenance is not particularly expensive. That does not mean there are no checks to make. Hagerty’s buyer’s guide flags AP1 engines that can suffer oil starvation under sustained high-rpm use, a problem Honda addressed with revised banjo bolts in mid-2002 (the guide says European cars were recalled and North American ones were not), plus gearboxes on AP2 cars that can pop out of second, fourth or sixth gear, wheel bearings, loose spark plugs and, on 2006 and later cars, a blistering dashboard. Early AP1 cars also tend to oversteer, a trait many owners prize and some have paid for.

The BMW’s risks are more specific and more expensive to get wrong. BMWBlog’s buyer’s guide cites connecting-rod bearing failures on cars past 75,000 miles, broken engine-mount bolts, and the need to check valve clearances every second service. PistonHeads adds that the S54 wants a running-in service around 1,200 miles with the correct oil, runs only on premium fuel, and can develop idle-control and head-gasket trouble at high mileage; it also reports that the larger inspection, which includes checking the valve shims, can run to roughly £1,000 at a dealer in the UK. In the U.S., ask any specialist for an actual quote before you buy. I could not find a published, independent audit of parts availability for either car, so treat parts as a pre-purchase question: owner forums describe some S2000 trim and hardtop items as hard to find. Honda has said it will manufacture genuine parts for the original NSX and has teased support for other sports models, but whether the S2000 is included remains speculation, as we noted in our report on Honda’s parts reissue plan. On the BMW side, the S54 shares its core with the E46 M3 and benefits from that car’s large following.

What the market is paying in October 2026

Hagerty’s October 2026 price guide puts a #3 (Good) 2001 S2000 at $26,300 and a 2004 car at $32,200, each up 1.9% in a year. Its 12-month auction data counts 129 sales of 2000–03 cars averaging $31,600 and 147 sales of 2004–09 cars averaging $39,400. Bring a Trailer’s recent results run wider. A one-family-owned 2001 with 3,600 miles sold for $50,000 on October 9, a 12,000-mile 2007 for $44,000 on October 21, and a 15,000-mile 2006 for $41,500 on October 22, while a 2003 car without a mileage listing brought $18,000 on September 22. Treat those as a snapshot of one platform, not a market index. The CR sits in its own tier: Hagerty’s #3 value is $55,700, which is down 1.9% over a year and 8.8% over three, and recent Bring a Trailer sales recorded by Hagerty ranged from $47,250 for an 81,000-mile car in March to $63,000 for an 11,000-mile example in August. Low-mile CRs have changed hands for far more; Hagerty’s December 2025 analysis cites Bring a Trailer results from $117,111 to $205,000 in 2021 and 2022, followed by lower resales of some of the same cars.

The Z4 M Roadster trades in a lower, thinner market. In the 12 months before October 28, 2026, Bring a Trailer recorded 13 sales with a median of $26,000, running from $18,250 for a 2007 car to $41,000 for a 7,000-kilometer 2008 in Canada. A recent 18,000-mile 2007 sold for $31,319 on October 19, and a 10,000-mile 2008 reached $55,555 in September 2025, just outside that window. That is roughly 13 data points on one site, so it describes where cars have been trading, not where they must trade. Hagerty’s online price guide lists the Z1, Z3 and Z8 but no E85 Z4, which tells you something about how seriously the broader valuation world has yet treated this car. For context on how BMW’s earlier roadsters are cataloged, see our BMW Z8 collector spec sheet.

Liquidity follows the same pattern. Hagerty counted 276 public-auction sales of S2000s in a year, which means a seller has a buyer pool and a buyer has comparables. A Z4 M seller is dealing with a narrow audience, and a buyer should expect to wait for the right car. Neither point says what prices will do next. Scarcity has not been rewarded here so far, and past results are no guarantee.

Strengths and weaknesses

Honda S2000

The Honda’s strengths are a high-revving engine, a light and balanced chassis, a gearbox owners treat as a benchmark, a deep owner community, a strong reputation for durability, and the most liquid market of the pair. Its weaknesses are the price it now commands for ordinary cars, the oversteer and oil-control questions on early AP1s, a long list of modified examples, and a CR whose price climbed sharply from 2020 before leveling off. It also remains a car that is easy to buy badly, since hidden crash damage is common, which is why Hagerty recommends a body-shop inspection. For a related look at a well-kept early example, see our report on a one-owner 2000 Honda S2000.

BMW Z4 M Roadster

The BMW’s strengths are the S54 engine and its soundtrack, true M hardware, a modest total production, a more comfortable ride than the Z4 M Coupe, and a price that has stayed below the Honda’s. Its weaknesses are weight, a higher-risk ownership profile if the rod-bearing and service history are unknown, a thin auction record, and a market that has not yet settled on what a good one is worth. The current-generation car is a different proposition entirely; our look at the BMW Z4 Final Edition covers where that story goes.

Which one for which buyer

If your priority is the purest driving experience and the easiest car to resell, the S2000 is the stronger choice, and an AP2 offers the more forgiving chassis while an AP1 offers the higher-revving engine. If you want the most car for the money and are comfortable with a documented service history, the Z4 M gives you an M-division inline-six at a median price roughly $4,000 to $13,000 below the Honda’s auction averages, depending on how you slice the data. If you want the only car in this pair with real rarity, buy the Z4 M, but do it understanding that rarity has not yet produced a premium. If you are chasing a trophy, the S2000 CR is the only variant with a clear collector identity, and its recent price softness is a reason to be careful rather than a signal either way.

For a collector who values certainty, the Honda is the safer purchase. For a collector who values the S54 and is willing to do the homework, the BMW is the more interesting one. Neither is a bet on appreciation, and I have not treated either as one. If you are weighing other cars from this era, our comparison of three 1990s Japanese turbo coupes looks at the same questions from a lower price bracket, and the history of Honda as a company explains how the S2000 fits into its story.

Sources and limits

Specifications and production totals come from Honda S2000 and BMW Z4 (E85) reference material, BMW Group Classic, Hagerty and Edmunds. Market figures come from Hagerty Valuation Tools and from Bring a Trailer’s S2000 and Z4 M Roadster result pages, all checked on October 28, 2026. Horsepower figures vary slightly between sources and model years, and Z4 M new-car pricing for the roadster was not available in a primary source, so I have used the coupe’s published price as a guide. Parts availability and ownership costs were not independently verifiable for either car and should be confirmed with a specialist before purchase.