Ferrari F40, Diablo GT and more coming up for sale in London

Any day where there is mention of a Ferrari F40 is a good day, correct? Correct. Today is such a day. The bright red turbocharged supercar you see above is just one of a few lots already announced for RM Sotheby's annual London auction. It takes place in Battersea, at the beginning of September, and if you are a fan of iconic supercars, you'll want to be there.

The 478bhp F40 in question was first sold in Milan, and - says RM - is one of the 'very best examples' to be made available in recent memory. It's only had one owner since new - the lucky so and so - and has covered a mere 5,700km since. 

It's recently had a full, engine-out service by Monaco Motors, while it even sports the original tyres, manuals, all-important Ferrari Classiche certificate of excellence and is practically brand new. Yours for anywhere between £880,000 and £1,170,000.

Now we're cooking. The last of the Lambos before VW took over, this GT version represents the pinnacle of the Diablo range. This 575bhp, V12-engined poster-boy is the 6th of just 80 GTs ever built, finished in grey with a two-tone black and blue interior.

It's done just 11,100km and is expected to sell for between £375,000 and £425,000.

Not much information has been revealed yet on this '964' generation Carrera, but it's an RS, and is therefore quite lovely. Expect to pay between £160,000 and £180,000. More than a 911 R listed at new...

Yup, an original Audi Quattro. Expected to sell for between £290,000 and £320,000.

OK, so we're going back a few decades, but there's no denying the provenance of the 1950's SL. Gorgeous, too. And in a very fetching paintjob. This one is expected to sell for between, um, £910,000 and £1,060,000. So not cheap. But then it's one of Mercedes-Benz's finest ever hours.

So, money no object, and only one choice - which car gets your vote?