The Grey Holy Trinity at Broad Arrow Auctions

Buying a grey car is normally the sensible choice: a head-over-heart decision intended to safeguard resale value and all that. Depreciation is unlikely to trouble any of these three, though.

At Broad Arrow Auctions’ forthcoming sale during the Zoute Concours, bidders will have the opportunity to buy the complete Holy Trinity. Each is finished in a supposedly special shade of grey, so it may be time to break open the piggy banks.

Porsche 918 Spyder and Ferrari LaFerrari

The Porsche 918 Spyder offered is number 142 of the 918 built. It is said to be the only example in Europe painted in the Paint to Sample shade ‘Sport Classic Grey’, a colour originally developed for the 2010 911 Sport Classic. Lovely.

This example also received an ‘Espresso’ Leather to Sample cabin - yes, brown - alongside the €60,000 Weissach Package. That package cut 40kg through magnesium wheels, titanium bolts, lighter brakes and a generous helping of carbon-fibre components. It has covered a respectable distance, too: just under 19,300km since its 2015 delivery.

The LaFerrari has also been used relatively properly, recording roughly 13,000km when catalogued. It is another 2015 car, finished in ‘Grigio Ferro Metallizzato’ - effectively metallic grey - and fitted with a black roof.

When new, it was specified with the carbon-fibre exterior pack, matte-grey wheels and silver brake calipers. It also has the decidedly useful nose-lift system, should that be the deciding factor. More recently, its high-voltage battery pack was fully replaced under warranty after one cell was found to be overheating. That neatly illustrates the realities of owning a hybrid hypercar from the Holy Trinity.

McLaren P1 and auction estimates

The McLaren P1 has presumably had little opportunity to develop faults. Over the past 11 years, it has travelled only 293km and, according to the listing, has never encountered rain. Its ‘MSO Storm Grey’ paint has not even been washed using water. This is despite the original owner spending an additional €50,000 on options.

Naturally, acquiring all three will require serious money. The Porsche carries a £2.2m to £2.6m estimate, while the Ferrari could achieve between £3.4m and £4.3m. The McLaren, comparatively speaking, is something of a bargain at £1.2m to £1.6m.

If the budget cannot accommodate the full set, though, which would you choose over the other two?