The soft-top summer joyride, that quintessentially British symbol of open-road freedom, may be driving into its final sunset. Industry analysts are now sounding the alarm: the convertible car market is facing an existential threat from the relentless march of electrification. For a sector already haemorrhaging sales, this is not a gentle breeze. It is a gale-force headwind.
Let us examine the numbers, because the bottom line never lies. Convertible sales in the UK have been sliding for years, a slow puncture that has now become a deflation. In 2023, registrations fell by nearly 12% year-on-year, according to the Society of Motor Manufacturers and Traders. That is a far steeper decline than the overall market, which managed a modest 2% uptick. The cause is not just seasonal whim or the British weather, which has always been a dubious friend to the open top. It is a fundamental shift in the economics of car production.
The culprit is the electric vehicle transition. Car manufacturers, already grappling with razor-thin margins and the colossal capital expenditure required for EV development, are rationalising their product lines. Convertibles, as niche products, are the first to feel the axe. Consider this: the drop-top version of a traditional combustion-engine model typically adds thousands of pounds to the sticker price, and that premium is even harder to justify when the platform is shared with an electric variant. The structural compromises required for an EV convertible, such as battery placement and roof mechanism integration, add complexity and cost. For a car that might only shift a few thousand units globally, the return on investment simply does not stack up.
We have already seen the casualties. Audi, a brand synonymous with the premium convertible, has confirmed the A5 Cabriolet will disappear after the current generation. BMW’s 4 Series Convertible, once a staple, saw its soft-top replaced by a folding hardtop in the current generation, but even that model is rumoured to be on borrowed time. The British market, so enamoured with the open-top experience from the likes of the MINI Convertible and the Mazda MX-5, is now facing a stark reality: the internal combustion engine convertible is a dying breed.
The irony is not lost on this financial editor. The very characteristics that make convertibles appealing, their sporting pretensions and lifestyle image, are now working against them. As the government tightens the regulatory screw on CO2 emissions, manufacturers are forced to focus their resources on high-volume, low-emission SUVs and crossovers. The convertible, by its very nature, is less aerodynamic and often heavier than its fixed-roof counterpart, further exacerbating the efficiency problem.
But is there any hope for the sun-seeking motorist? Perhaps, but it will come at a price. A handful of manufacturers are betting on the electric convertible, but the economics are brutal. The newly unveiled MG Cyberster, an all-electric two-seater, carries a starting price of around £60,000, well above the average new car transaction. And for that money, you get a car that, while quick, sacrifices driving range for the sake of the open-air experience. The upcoming Polestar 6, a grand tourer convertible, is expected to command a six-figure sum. These are not mass-market solutions.
Meanwhile, the second-hand market, the lifeblood of many British buyers, will gradually see the supply of desirable petrol convertibles dry up. Classic models will become collectors’ items, their values potentially rising as the novelty of a convertible without a range anxiety warning light becomes a rarity. But for the average purchaser, the choice will narrow to the few holdouts, such as the evergreen Mazda MX-5, which stubbornly remains as a combustion-engine model for now.
The market is sending a clear signal that the convertible's days are numbered. The shift to electric is not just about swapping a petrol engine for a battery pack. It is a fundamental re-engineering of the car, one that often makes the convertible an unattractive proposition for the balance sheet. As the City knows all too well, when the numbers no longer add up, the product is inevitably discontinued.
So, dear reader, if you cherish the wind-in-your-hair experience, you may want to act soon. The convertible car market is not just heading into the sunset. It is driving off a cliff, and there may not be a soft landing. For investors, the message is clear: avoid the sector. The only thing more volatile than a convertible’s roof is its residual value.
