We've come to expect larger-than-life offerings from Rezvani, and the Vengeance is no exception. It's a three-row SUV with seating for up to eight people, though despite its outward appearance, the luxurious cabin features a massive OLED display and leather galore. There's also a 6.2-litre V8 under the bonnet, and if this all sounds like a Cadillac Escalade, you're not wrong. But does an Escalade have optional electrified door handles?

The Vengeance does, and if you prefer pseudo-military features in your posh SUV, there are many other option boxes to check. Of course armoured body panels and bulletproof glass are on the list, but how about armour for the passengers? Vests and helmets are available, along with gas masks, magnetic deadbolts for the doors, run-flat tyres, sirens, ultra-bright lights, a thermal night vision system, and we aren't joking about shooting pepper spray. It's also an option, and if you need to find cover for a quick escape, it even has a smoke screen feature.

Gallery: 2023 Rezvani Vengence

Those items and more are part of the optional Military Package, but if you just want to look tough, the standard-issue Vengeance offers the same bulky video-game body as the armoured version. In fact, Rezvani called on video game vehicle developer Milen Ivanov to design the Vengeance.

"The goal was to put a science fiction video game concept car in people's driveways," said CEO Ferris Rezvani.

2023 Rezvani Vengence Interior
2023 Rezvani Vengence Interior

Underneath it all is a Cadillac Escalade, and that means plenty of luxury comes standard. Rezvani lists heated and ventilated seats, navigation with augmented reality, a heads-up display, a rearview camera, a panoramic roof, and pretty much every driver assist system is included in the Vengence's not-insignificant $249,000 (approx. £225,000) starting price. That also includes a choice between GM's 3.0-litre Duramax diesel making 277 bhp, or a 6.2-litre V8 good for 420 bhp. Power goes to the ground through a 10-speed automatic.

If the Caddy's naturally aspirated V8 isn't enough, the supercharged mill from the Escalade-V is available. It makes 690 bhp for the Vengeance, but it's an $85,000 (£77,000) upgrade per Rezvani's Vengence configurator. And as you can probably guess, clicking all the wild options raises the cost significantly. With everything ticked, you'll pay approximately $600,000 (£543,000).