Supercar Blondie shares the story behind the most incredible French supercar ever that no one believed was a Renault
Published on May 24, 2026 at 4:00 AM (UTC+4)
by Alessandro Renesis
Last updated on May 24, 2026 at 4:00 AM (UTC+4)
Edited by
Emma Matthews

When it first came out, this gorgeous electric concept supercar made headlines for lots of reasons, including the fact it was a Renault supercar.
Alex Hirschi – AKA Supercar Blondie – has actually driven it, and there are a couple of things she wanted to share
Including the one thing that made this concept car a pioneer.
What’s one thing about it that people may have missed about the Renault Trezor?
“This might not be obvious in the video, but the sounds you hear are from the actual car, they’re not sounds we’ve added in the edit,” Alex explained.
“For example, when the lights go on, this is accompanied by a cool little chime.”
That makes the Renault Trezor a gorgeous car, but also a pioneer.

Most EVs emit sounds that are completely fake, engineered by the car’s electronic brain to turn absolute silence into noise when you’re on the move.
But Renault created a sound signature that blended mechanical whirs with digital sounds to give the car a persona, which is sort of similar to what Ferrari said it will do for the upcoming Elettrica.
And they did that 10 years ago.
Inevitable question when it comes to concept cars… is it actually easy to drive?

Alex admitted that it wasn’t exactly the easiest car in the world to drive, but then again, that’s the defining feature – and the charm – of a concept.
But beauty, in this case, comes with a price.
“The red windscreen was very difficult to see out of, but that’s why I love concepts, because not everything needs to be made with practicality in mind, creativity is limitless,” she said.
Do you think the Trezor would sell as a production vehicle?

In her view, this could be well-received in the market, and she’d definitely like to see Renault at least test this by kicking off production.
“I wish this car went to production,” Alex said.
“The Trezor truly is – still to this day – in the top three concept cars I’ve reviewed,”
“The honeycomb design, the cool taillights, the sleek, beautiful design would really stand out. The most obvious thing that would need to change is the red windscreen, but that’s an easy fix,” she noted.

And even if it doesn’t get into production, there are still elements Renault could use.
“One thing I’d absolutely love to see taken from this car into production cars is the exposed laser fiber lights,” she explained.
“The way they pull in to a different shape when breaking is so much cooler than a red light just simply going on.”
Most people probably won’t have seen it ‘in the metal’, so is there anything that truly stands out when you see it in person?

In Alex’s view, the Renault Trezor is first and foremost just a very beautiful car.
Mostly, she thinks, because Renault engineers and designers had complete freedom, ‘carte blanche’, as they say in this vehicle’s homeland.
“This car is the perfect example of how sleek electric cars can be,” Alex said.
“The designer didn’t have to work around an engine, and for that reason, he was able to really focus on design rather than practicality.”

“This is something I’m really excited to see more of in future as more and more fully electric supercars and hypercars hit the market.”
Unfortunately, this also brings us back to the sad fact that this will – probably – never be sold.
“It is exciting to see what Renault is capable of designing, it’s just a pity that it doesn’t get to go to production,” she said.
After beginning his automotive writing career at DriveTribe, Alessandro has been with Supercar Blondie since the launch of the website in 2022. In fact, he penned the very first article published on supercarblondie.com. He’s covered subjects from cars to aircraft, watches, and luxury yachts - and even crypto. He can largely be found heading up the site’s new-supercar and SBX coverage and being the first to bring our readers the news that they’re hungry for.