I'd guess that the police had to do 147mph to catch the Jaguar, that the yahoo reporting is wrong and that they pressed the Jaguar driver into a conviction in court.....
Quite likely. I'm always amazed when the Police spin out statements like "I had to do 120mph to catch them" and deduct from this that the perp was doing a similar speed. Possibly a sad reflection on slipping GCSE standards

Yet another non-news events being spun out of all proportion.