Convertible electric cars exist, but they are rare and expensive

A convertible electric car is a battery-powered vehicle with a retractable or removable roof. Unlike gas convertibles, which have been common for decades, electric convertibles are still uncommon. Only a handful of manufacturers currently offer them, and most cost significantly more than their hardtop electric counterparts.

The main challenge is weight and battery space. A convertible roof mechanism and the reinforced frame needed to keep the car rigid without a fixed top add hundreds of pounds. That extra weight reduces the range you get from the same battery size. Manufacturers have to choose between accepting lower range or installing a larger (and more expensive) battery to compensate.

If you are considering a convertible electric car, you should understand what models actually exist, how their range compares to hardtop versions, and whether the trade-offs make sense for your driving patterns.

Key Takeaways

  • Only a few manufacturers currently produce convertible electric cars, with the BMW i8 Roadster and Porsche 911 Cabriolet (plug-in hybrid) being the most recognizable options in North America.
  • Convertible electric cars typically have shorter range than hardtop versions of the same model because the roof mechanism and reinforced frame add weight.
  • Convertible electric cars cost more than hardtop models, often by $10,000 to $20,000 or more, depending on the manufacturer and model year.
  • Cold weather reduces range more noticeably in convertibles because the open-roof design allows more heat loss, even when the roof is closed.
  • Charging infrastructure, warranty coverage, and maintenance needs are the same as any other electric vehicle, so your location and driving habits matter more than the convertible design itself.

Current convertible electric car models available in North America

The BMW i8 Roadster is the primary true electric convertible currently sold in the United States. It is a plug-in hybrid (not fully electric), with a 2.0-liter turbocharged engine paired with an electric motor. The battery provides roughly 11 miles of all-electric range, and the total driving range is around 300 miles with the engine included.

The Porsche 911 Cabriolet is also available as a plug-in hybrid model, not a fully electric vehicle. It offers similar architecture to the BMW: a gas engine with electric information and limited all-electric range.

Fully electric convertibles are even rarer. The Volkswagen ID. Buzz (coming to North America in 2024 and beyond) will include a convertible-style roof option on some trims, though it is more of a pop-up roof than a traditional convertible. The Tesla Roadster (second generation) was announced with a removable glass roof panel, but as of now it has not yet reached customers.

If you want a true, fully electric convertible with a retractable roof and significant range, your options are currently very limited in the North American market. European and Asian markets have slightly more variety, but availability remains narrow.

How convertible design affects range and efficiency

A convertible electric car loses range compared to a hardtop version because of added weight and aerodynamic changes. The roof mechanism itself—whether hydraulic, electric, or manual—adds 100 to 200 pounds depending on the design. The frame reinforcement needed to maintain structural rigidity without a fixed roof adds another 100 to 150 pounds.

That weight directly reduces range. An electric motor has to work harder to move a heavier vehicle the same distance. If a hardtop version of a model gets 250 miles of range on a full charge, the convertible version of the same car might get 220 to 240 miles, assuming the same battery size.

Aerodynamics also change. Even with the roof closed, the convertible's body shape is less efficient than a hardtop design. The seams, latches, and roof panel edges create small air gaps that increase drag slightly. This effect is small in city driving but becomes noticeable on highways.

Cold weather amplifies the problem. Convertibles lose more heat through the roof and side seams, even when closed, so the battery has to work harder to maintain cabin temperature. In winter, a convertible electric car may lose 20 to 30 percent of its range compared to summer driving—worse than a hardtop electric car would experience.

Price difference between convertible and hardtop electric cars

Convertible electric cars cost more than hardtop versions of the same model. The price premium typically ranges from $10,000 to $25,000, depending on the manufacturer and model.

The BMW i8 Roadster starts around $165,000 to $180,000 (pricing varies by year and trim). The hardtop BMW i8 (when available) was significantly less expensive. The Porsche 911 Cabriolet plug-in hybrid starts around $110,000 to $130,000, while the hardtop 911 plug-in hybrid is roughly $15,000 to $20,000 cheaper.

This premium reflects the cost of the roof mechanism, the reinforced frame, and the lower production volume. Because fewer people buy convertibles, manufacturers cannot spread development and tooling costs across as many units, so the per-car cost is higher.

Before buying a convertible electric car, compare the total cost of ownership—purchase price, expected maintenance, insurance, and electricity costs—against a hardtop electric car that meets your range and performance needs. The convertible premium may not be worth it if you rarely drive with the roof down.

Maintenance and durability of convertible roof systems

The convertible roof mechanism is the most likely component to need repair outside of normal maintenance. Hydraulic systems can develop leaks, electric motors can fail, and seals can wear out. Repair costs for roof mechanisms typically range from $500 to $3,000 depending on the issue and the manufacturer.

Most manufacturers cover the roof mechanism under the basic warranty (typically three years or 36,000 miles), but coverage varies. Check your specific warranty document to see whether roof repairs are included and for how long. After the warranty expires, roof repairs become your responsibility.

The roof seals and weatherstripping also wear over time. If water leaks into the cabin or the roof does not close completely, seals may need replacement. This is usually a $200 to $800 repair depending on how many seals need work.

Convertible electric cars do not require different charging or battery maintenance than hardtop electric cars. The battery, motor, and charging system work the same way. Your main maintenance difference is the roof system itself.

When a convertible electric car makes sense for your situation

A convertible electric car is worth considering if you drive primarily in warm climates, rarely need maximum range, and value the driving experience of an open roof. If you live in California, Florida, Arizona, or another warm region and your typical drive is under 150 miles per day, the range penalty is less likely to affect you.

Convertibles also make sense if you use the car for weekend or leisure driving rather than daily commuting. If your commute is 30 miles round trip and you have access to home charging, the reduced range of a convertible is irrelevant to your actual needs.

A convertible electric car does not make sense if you live in a cold climate, regularly drive long distances, or need maximum efficiency. The range loss in winter and the aerodynamic penalty on highways mean you will spend more time charging and have less flexibility in your route planning.

Consider also whether you will actually use the convertible feature. If the roof stays up 90 percent of the time, you are paying a significant premium for a feature that does not improve your driving experience. A hardtop electric car will give you more range, lower cost, and the same daily functionality.

Charging and range planning with a convertible electric car

Charging a convertible electric car works exactly like charging any other electric vehicle. You use the same Level 1 (standard outlet), Level 2 (240-volt home or public charger), or DC fast charger infrastructure. The convertible design does not change charging speed or compatibility.

Range planning, however, requires more conservatism. If a hardtop electric car's EPA range estimate is 250 miles, you should plan trips assuming the convertible version gets 220 miles in warm weather and 180 miles in cold weather. This accounts for the weight penalty and aerodynamic loss.

On long road trips, you will need to charge more frequently than you would in a hardtop electric car. If you regularly drive more than 200 miles in a single day, a convertible electric car may not be practical unless you have access to DC fast chargers along your route.

Check the charging network coverage in your area before buying. If you rely on public charging, make sure Level 2 and DC fast chargers are available along your typical routes. Home charging is especially important for a convertible electric car because the reduced range means you need to start each day with a full charge more often than you would with a hardtop.

Frequently Asked Questions

Can I get a fully electric convertible car in the United States right now?

No. The BMW i8 Roadster and Porsche 911 Cabriolet are plug-in hybrids, not fully electric. The Tesla Roadster was announced with a removable roof panel but has not yet been delivered to customers. The Volkswagen ID. Buzz will have a pop-up roof option when it arrives in North America, but it is not a traditional convertible.

How much range do I lose by choosing a convertible instead of a hardtop?

Typically 10 to 20 percent in warm weather, and 20 to 30 percent in cold weather. The exact loss depends on the model, driving conditions, and how often you drive at highway speeds. City driving shows less range loss than highway driving.

Is a convertible electric car more expensive to insure?

Usually yes, but the difference varies by insurer and your location. Convertibles are more expensive to repair if damaged, and some insurers charge 5 to 15 percent more for convertible coverage. Get quotes from multiple insurers before buying to understand the actual cost in your area.

Can I use a convertible electric car in winter?

Yes, but expect significantly reduced range and plan accordingly. The open-roof design allows more heat loss, and cold batteries are less efficient. If you live in a cold climate and need reliable long-distance range, a hardtop electric car is a better choice.

What happens if the convertible roof breaks?

Repair costs typically range from $500 to $3,000 depending on the issue. Most manufacturers cover roof repairs under the basic warranty (usually three years or 36,000 miles). After the warranty expires, repairs are your responsibility. Check your warranty document for specific coverage details.