Here's pictures of them as they sit.
The Lotus apparently got the worst of it, but all three have broken windshields. The Porsche and the Mustang have dented sheetmetal too.
You'll notice that the Porsche no longer is wearing its UK plate H982 FKL, but is instead wearing H1 VAE from unknown country (Please ID it in the comments!)
Photo Credit: Actualidad TDF.
Update: UK plate H1 VAE comes up as a white 2006 Porsche 3.6L, so Clarkson's Porsche isn't wearing a UK plate anymore.