But then there's the elephant in the room: LMP1. Since the 2011 Intercontinental Le Mans Cup season, the precursor to the FIA World Endurance Championship, no fewer than eight full-time teams have departed the category - including manufacturer-backed teams Peugeot, Aston Martin, and
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Where does that leave sports car racing's top category then? Sure, an influx of privateer P1s are set to enter the WEC next season, but with potentially only one well-backed works team on the grid, we may as well hand over all of the trophies right now.
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So why is DPi becoming as popular as it is? Well, every car has to start life as a standard ACO/FIA homologated 2017 LM P2 Prototype chassis from one of the four approved constructors (Dallara, Onroak Automotive, ORECA or Riley/Multimatic), unlike in P1 where teams have to develop entire cars from the ground up.
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And there lies what, to me, seems to be a logical solution. Unlike Formula 1, sports car racing has always been somewhat dependent on manufacturers.
Look at the records for most wins at Le Mans, the top five is dominated by manufacturer entries, whereas the same record in F1 has just Mercedes as the only true car manufacturer, and they've only crept into the top five by virtue of their recent success. There's only one more road car manufacturer in the top 10 of all time F1 wins, that's Renault.
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As I've already touched upon, P2 in the WEC has already enjoyed a rather swift renaissance since the lowly four full-time entries in suffered back in 2014, so why not expand on that concept for the top class?
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LMP1 is dying a sad death, but the solution could be in the classes below. After all, it worked for GT racing when GT1 disappeared last decade.
Images: Dominik Wilde (1,2, 5), IMSA (3, 4, 6)