You’ve probably seen the headlines splashed across the auto world recently: Carmakers have a brilliant, groundbreaking new idea to cure your EV range anxiety. They’re going to put a gas engine back in the car.
Yes, you read that right. The same auto industry that spent a decade lecturing us about the death of the internal combustion engine has suddenly decided that the best way to sell you an electric vehicle is to… include a backup gas engine. They’re calling it a “range extender.” But let’s call it what it actually is: a massive white flag.
Innovation isn’t adding a combustion engine to an electric vehicle; it’s admitting your electric vehicle isn’t actually ready.
The Wall Street Journal recently reported on this trend as if it were some clever new breakthrough. But if you’ve been paying attention, you know this is a rerun. BMW put a range-extending petrol engine in the i3 back in 2014. Mazda tried the exact same gimmick with the MX-30, using a Wankel rotary engine as a generator. It flopped so hard they practically had to walk it back. This isn’t a new category. It’s a recycled band-aid.
Here is the tension they don’t want you to think about: The entire electric-car narrative was built on the promise of eliminating the gas engine. No more oil changes. No more exhaust systems. No more relying on fossil fuels. Now, to accelerate adoption, automakers are quietly slipping the very thing they swore to destroy right back into the chassis. Why? Because battery density and charging infrastructure still aren’t good enough for mass-market convenience.
You aren’t buying the future of transportation. You’re buying a safety blanket with a spark plug.
Instead of just admitting that the infrastructure isn’t there yet—and fixing it—carmakers are asking you to carry an engine around as a security blanket. And who pays the price? You do. As engineers who worked on this exact technology a decade ago will tell you, you don’t get the purity of an EV. You get all the joys of traditional engine maintenance: oil changes, oil filters, spark plug replacements, coolant flushes, and starter replacements.
You are effectively paying for the degradation of a lithium-ion battery and the aging of an internal combustion engine. You’re carrying the cost, weight, and complexity of two entirely different powertrains in one vehicle.
A range-extended EV doesn’t give you the best of both worlds; it gives you the maintenance bill of both worlds.
If you are considering an EV right now, you need to understand the choice in front of you. It isn’t simply electric versus gas. The choice is whether you want to pay for actual battery innovation, or whether you want to subsidize the automakers’ failure to build adequate infrastructure by paying for familiar, complex engine maintenance that EV ownership was supposed to leave behind.
The next time a dealer tries to sell you a “range-extended” EV as the pinnacle of green technology, ask them where the oil filter goes. The future isn’t supposed to leak motor oil.
FAQ
Q: Isn't a range extender just a hybrid?
A: Functionally, yes. It's a series hybrid. Automakers are just using clever marketing to repackage old hybrid logic as 'range insurance' to mask the fact that pure battery tech hasn't caught up to their promises.
Q: What's the practical implication of buying one?
A: You get the worst of both worlds: the premium price and battery degradation of an EV, combined with the oil changes, spark plug replacements, and maintenance costs of a traditional gas engine.
Q: Why are automakers doing this instead of just making better EVs?
A: Because solving battery density and building a nationwide fast-charging grid is expensive and hard. Slapping an old gas engine into the chassis and calling it a 'range extender' is a cheap shortcut to move inventory off the lot.