THE most exclusive Australian muscle car is up for sale – again – with a three-quarter of a million dollar pricetag.

The only publicly sold HSV HRT 427 Monaro popped up in Unique Cars’ classifieds in recent days, with an asking price of $750,000.

It’s the same vehicle which was put on the market in September of last year with a $650,000 price tag.

The car was originally sold at auction for an eye-watering $920,000 before being sold on three times in public sales prior to this offering.

HSV’s hotted-up Monaro is one of the rarest and most fearsome muscle cars made in Australia, designed to take on Porsche’s formidable GT2 and paving the way for the infamous GT-spec race car which won the Bathurst 24 Hour twice.

The HSV HRT 427’s performance credentials are belied by a modest exterior – underneath that red paint is a 7.0-litre, naturally-aspirated V8, producing 420kW and 780Nm. It could sprint to 100km/h in under four seconds, and recorded an 11.7-second quarter mile E/T.

Weight was slashed by dumping air conditioning, radio, rear seats and airbags, while it gained bespoke race-spec suspension and brakes.

So, who’s game to be the next owner of this fire-breathing racecar-for-the-road?