The Audi E-Tron Spyder is the roofless retro-futuristic convertible we never knew we wanted

This is the Audi E-Tron Spyder, and it’s one of a kind.

Literally, as it turns out, because there’s only one in existence.

Supercar Blondie’s Sergi Galiano got the chance to take it for a spin, and he had to go to a secret location in the Austrian alps to do it.

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Visually, it looks like an Audi TT or an Audi R8 from the future.

At the front, you’ve got a massive grille made from a combo of carbon fiber and aluminum.

You’ll also spot Audi’s signature headlamps and, you’ll love this, the charging port is hidden underneath Audi’s four-ring logo.

You also have two scoops to ventilate the hood.

There’s one right at the top of the hood, this one’s pretty visible, and another one that’s hidden right behind the logo.

The side profile is quite boxy, and yet sleek.

It’s got gigantic blade wheels – 20 spokes in total – and super slim wing mirrors.

And by the way, these rims are super complicated to make as each one is made up of 60 individual pieces.

Also, there’s no roof on this car, and no pillars either.

When you look at the back of the car, the similarities between this and the R8 become obvious.

The section between the cabin and the trunk has R8 written all over it, and the same applies to the vents and taillights.

But there’s a reason for this.

This is actually a concept from 2010 that Audi made to tease some of the then upcoming features of the second-gen R8.

The cabin also looks R8-ish – albeit a bit more minimalistic.

You’ve got bucket seats with carbon fiber headrests and a digital instrument cluster.

The center console is pretty bare, too.

You’ve got a gear selector and that’s about it.

At the back, on the right-hand side of the car, you’ll also find a fuel filler cap.

This is because the E-Tron Spyder is actually a diesel hybrid.

The reason why they used diesel instead of gas is Audi was the first manufacturer to win Le Mans with a diesel engine.

At the front, you’ve got a 300-horsepower diesel V6 and then at the back, you’ve got two 44-horsepower electric motors.

Like other hybrid cars of this type, the car can go fully electric when you’re driving around town to save fuel.

This concept feels pretty special.

And more importantly, we’re glad it was more than just some design exercise since it eventually spawned the arrival of the R8.