Here's your one (and possibly only) chance to buy a Jaguar XJR-15 in Australia

One of the rarest and fastest Jaguars ever built is up for sale in NSW.

Ask any motoring enthusiast and there’s a good chance that they know the story of the Jaguar XJ220 – Jaguar’s shot at the supercar big leagues and briefly the fastest car in the world. It was all thanks to some improvisation and the hard work of Tom Walkinshaw Racing (TWR) in cahoots with Jag.

But this car spotted for sale on CarsGuide - the XJR-15 - was the lesser-known predecessor.

Released in 1990, the car was designed by TWR and Peter Stevens (who would promptly go on to design the McLaren F1) purely to be a LeMans racer for the road. It was powered by a 6.0-litre, naturally aspirated V12 derived from the XJR-9 race car, putting out 336kW/570Nm.

Despite the size of the engine, the car only weighed around 1060kg, thanks to it being one of the first road-going cars (alongisde the earlier Ferrari F40 and later McLaren F1) to be comprised entirely out of carbon fibre and Kevlar composite materials.

Why so rare? Only 53 were ever built, and only 26 of those were destined for the road. The other 27 of them were dedicated race machines. At a price of £500,000 in 1990 (almost AU$2 million in today’s money) they were largely snapped up as collector’s items by only the most gratuitously wealthy - the Sultan of Brunei was an esteemed customer, for instance.

Oh yeah, and you can buy this car. In NSW. Right now. The Gosford Car Museum has one up for sale in immaculate condition, no less. Only, you’ll need rather deep pockets. They’re asking an eyewatering price of $690,000. It's worth noting that price is down from the whopping $1,050,000 original asking price when this car was first listed in Febuary 2017.

For that money you could have a brand new Ferrari F12 Berlinetta, a Rolls-Royce Ghost or a Porsche 911 GT2 RS (with $15k change).

It’s chassis #18 with as little as 710km on the clock and a full restoration completed in 2012 by Mike Roddy Motors in Victoria. It looks like something even the folks at the JLR Classic Works would drool over. You may have even seen this car before at Motorclassica.

What do you reckon, for $690k would you go this nugget of Jag history, or a 911 GT2 RS? Tell us what you think in the comments.