The search for a BMW M4 Convertible for sale often begins with a singular desire: the combination of BMW M’s legendary racing pedigree with the visceral thrill of open-top motoring. However, the M4 Convertible is not a monolithic model. Depending on whether you are eyeing a brand-new G83 generation or a late-model F83, you are looking at two fundamentally different driving experiences. Navigating the current listings requires more than just a filter for price and mileage; it demands a deep understanding of engine transitions, roof mechanisms, and drivetrain evolution.

The Great Generational Divide: F83 vs. G83

When browsing for an M4 Convertible, the first decision is architectural. The M4 has existed in two primary forms since its inception, and the choice between them dictates everything from the car’s silhouette to its handling dynamics.

The F83 Generation (2015–2020): The Hardtop Icon

For many enthusiasts, the F83 represents the pinnacle of the "transformer" era. It features a three-piece retractable hardtop. When the roof is up, the car offers a coupe-like silhouette and superior noise insulation, making it a viable year-round daily driver in colder climates.

From a mechanical standpoint, the F83 is powered by the S55 3.0-liter twin-turbocharged inline-six engine. In its base form, it produced 425 horsepower, climbing to 444 horsepower in the Competition Package models. This generation is defined by its snappy 7-speed Dual-Clutch Transmission (DCT), which provides lightning-fast shifts that feel mechanical and raw.

What to look for in F83 listings:

  • The Crank Hub Issue: While rare, late-model S55 engines are generally more reliable, but buyers of high-mileage 2015-2016 models often look for cars that have had "crank hub fixes" or reinforced components.
  • Roof Seals: Hardtops have more moving parts. Check for leaks or "creaking" during test drives, which can indicate misaligned panels.
  • Carbon Ceramic Brakes: If you see gold calipers in the photos, the car has carbon ceramics. While amazing for track use, they are incredibly expensive to replace for a street-driven convertible.

The G83 Generation (2021–Present): The xDrive Revolution

The current G83 generation marks a radical departure. BMW moved away from the heavy folding hardtop in favor of a new "panel bow" soft-top. This roof is 40% lighter than the F83’s hardtop, which significantly lowers the car's center of gravity and improves agility.

Under the hood lies the S58 engine, a masterpiece of modern engineering that produces 503 horsepower (and up to 523 hp in 2025+ models) in Competition trim. Crucially, the G83 is the first M4 Convertible to feature M xDrive, BMW’s rear-biased all-wheel-drive system. This system allows the M4 to put its massive power down efficiently, resulting in a 0-60 mph time of just 3.6 seconds—a figure that was once the territory of supercars.

What to look for in G83 listings:

  • iDrive Version: 2021-2022 models use iDrive 7 with separate screens. 2023+ models feature the Curved Display with iDrive 8 or 8.5. The newer system is tech-forward but removes many physical buttons for climate control.
  • M Carbon Bucket Seats: These look stunning in photos, but they are polarizing. In our testing, they provide incredible lateral support but can be difficult to ingress and egress, especially with the roof up.

Performance Analysis: The Competition Package and Drivetrain

When searching for a BMW M4 Convertible for sale, you will notice the word "Competition" appears in almost every high-end listing. Understanding why this matters is critical for justifying the price premium.

Is the Competition Package Essential?

In the F83 generation, the Competition Package was an option. It added 19 horsepower, revised suspension tuning, and the iconic "Star-spoke" Style 666M wheels. On the secondary market, Competition models hold their value significantly better and offer a more "complete" M experience.

In the G83 generation, the M4 Convertible is sold exclusively as a Competition model with xDrive in many markets (including the US and UK). You cannot get a manual transmission or a base rear-wheel-drive version of the G83 convertible. This makes the G83 the "ultimate" spec by default, but it also means the entry price is higher.

The xDrive Advantage

The inclusion of M xDrive changed the character of the M4 Convertible. Previous rear-wheel-drive models could be tail-happy and intimidating in the rain. The xDrive system provides a safety net that makes the car usable in all seasons. During our spirited drives in the G83, the system’s ability to shunt torque to the front wheels only when necessary keeps the car feeling like a rear-drive sports car until you actually need the grip to rocket out of a corner.

The Buying Checklist: Inspections and Red Flags

A high-performance vehicle like the M4 requires a specific inspection protocol. Whether you are buying from a dealer or a private party, ensure these points are addressed.

1. The Service History (The 1,200-Mile Break-in)

BMW M cars require a critical "break-in" service at 1,200 miles, where the running-in oils in the engine and differential are replaced. If a listing shows a car that missed this window or had it done at 3,000 miles, it is a significant red flag for the long-term health of the powertrain.

2. Tire Condition and Consistency

The M4 is sensitive to tire choice. Look for "Star-marked" tires (Michelin Pilot Sport 4S or Pirelli P Zero). The star indicates a BMW-specific compound. If a car for sale has mismatched brands or "budget" tires, it suggests the previous owner may have cut corners on maintenance.

3. Brake Wear

Standard M compound brakes (blue calipers) are excellent but can be prone to squealing when cold. Check the rotors for a "lip" at the edge. Replacing pads and rotors on all four corners can easily cost $2,000 to $3,000. If the car has Carbon Ceramics (gold calipers), ensure there is no chipping on the rotor surface, as a full replacement can exceed $10,000.

4. Interior Wear: The Bolster Check

BMW’s Merino leather is soft and luxurious but prone to wear on the driver’s side outer bolster. In convertibles, the leather is also exposed to more UV radiation. Check for dryness or cracking, especially on the top of the rear headrests.

Market Pricing: What Should You Pay?

The price of a BMW M4 Convertible for sale varies wildly based on the generation and mileage.

  • Entry-Level F83 (2015–2017): Expect to pay between $35,000 and $45,000 for well-maintained examples with 50,000+ miles. These are the "value" play but watch out for upcoming major services.
  • Late-Model F83 (2018–2020): These often sit in the $50,000 to $65,000 range. They benefit from the LCI (Life Cycle Impulse) updates, including better LED lighting and updated iDrive.
  • Early G83 (2021–2022): Prices generally range from $70,000 to $85,000. These cars are often still under factory warranty or available as Certified Pre-Owned (CPO).
  • Near-New/2025 G83: Expect to pay $95,000 to $110,000+ depending on options like the Individual Paint or the M Carbon Exterior Package.

Where to Find the Best Inventory

While generic sites like Craigslist or Facebook Marketplace may have deals, the M4 is a complex machine that rewards buying from reputable sources.

  1. BMW Certified Pre-Owned (CPO): This is the gold standard. CPO cars undergo a 360-degree inspection and come with an additional year of unlimited mileage warranty. For a G83, this is highly recommended to protect against electronic gremlins.
  2. Enthusiast Forums (Bimmerpost): Cars for sale here are often owned by "detail-oriented" enthusiasts who document every oil change and modification.
  3. Specialty Auctions (Bring a Trailer / Cars & Bids): Excellent for finding low-mileage, rare-spec F83s or G83s with "Individual" colors like Grigio Telesto or Isle of Man Green.

Ownership Costs and Practicality

Buying the car is only the first step. The M4 Convertible carries higher running costs than a standard 4 Series.

  • Fuel Economy: Expect 16-18 MPG in the city and up to 23 MPG on the highway. The S58 engine requires 91 or 93 octane premium fuel.
  • Insurance: High-performance convertibles are often in the highest insurance brackets. Get a quote before finalizing the purchase.
  • Roof Maintenance: Soft-tops should be treated with a hydrophobic protectant annually to prevent water soaking into the fabric and to maintain the deep black (or optional Anthracite) color.

Does it Have Enough Space?

Practicality is a common question. The G83 offers 385 liters of boot space with the roof up, which drops to 300 liters when folded. Unlike the old hardtop, which took up almost the entire trunk, the soft-top is much more compact. You can actually fit two carry-on suitcases even with the top down. The rear seats are usable for children or short trips for adults, but legroom is tight if the driver is over six feet tall.

Summary

Selecting a BMW M4 Convertible for sale requires balancing the raw, mechanical feel of the F83’s DCT and hardtop against the high-tech, all-weather dominance of the G83’s xDrive and S58 engine. For those seeking the best value, a 2018-2019 F83 Competition offers a sweet spot of performance and modern features. However, for the ultimate performance statement, the G83 Competition xDrive is an unrivaled open-top machine that can outperform many dedicated sports cars.

FAQ

Is the BMW M4 Convertible reliable?

Generally, yes. The S55 and S58 engines are considered some of BMW’s most robust M engines. The primary concerns are usually related to the complex folding mechanisms of the roof (in the F83) and the high cost of wear-and-tear items like brakes and tires.

Can I drive the M4 Convertible in the winter?

Yes, especially the G83 with its xDrive system. The new soft-top has multiple layers of insulation that keep the cabin as warm as a coupe. With a set of dedicated winter tires, an xDrive M4 is exceptionally capable in the snow.

What is the 0-60 mph time of the BMW M4 Convertible?

The G83 M4 Competition xDrive reaches 60 mph in approximately 3.6 to 3.7 seconds. The older F83 Competition takes about 4.1 to 4.3 seconds depending on traction.

Should I get the M Carbon Bucket seats?

If you plan on track days or love the aggressive aesthetic, yes. However, for a convertible meant for cruising, the standard M Sport seats are significantly more comfortable for long-distance driving and easier to get in and out of.

How long does it take to open the M4 Convertible roof?

In the G83 generation, the roof opens or closes in about 18 seconds and can be operated at speeds up to 31 mph (50 km/h).