The 1966 Porsche 906 Carrera 6 took part in the Targa Florio and won its class in the Le Man 24-hour race

The 1966 Porsche 906 Carrera 6 took part in the Targa Florio and won its class in the Le Man 24-hour race

Only a month ago we saw two of the rarest cars in the world being put up for auction - including a 1967 Ferrari 330 P4, as well as a 1965 Shelby Daytona Coupe that was expected to sell for between $10 million and $15 million. Potential buyers will now also be able to bid on a handful of other rare cars, including the 1966 Porsche 906 Carrera 6, a car that took part in the Targa Florio and won its class in the Le Man 24-hour race.

The auction is taking place on May 23 at the Brands Hatch motor racing circuit in the UK, and the ultra-rare Porsche is expected to reach prices of close to £400,000 when it goes under the hammer. The auction will be a part of the annual three-day-long Masters Historic Festival held at the Brands hatch circuit, and will see over 50 cars, 100 items of automobilia and 42 sporting guns all auctioned off.

Of the 50-car stable being auctioned off, other highlights include a 1966 Lola T70 Spyder MkII, a 1957 AC Aceca, a 1988 Porsche Kremer 962, and a 1992 Jaguar XJ220. In its heyday, the Jaguar XJ220 held the title for the world's fastest production car until in 1994 when the McLaren F1 came in to steal its thunder. Properly maintained, however, the Jag should still be able to pull of close to 217mph (350km/h) - not bad for a car from almost two decades ago.