New RR Sport 5.0 SC has a poorly thought out phone and satnav interactive. Prepared by someone who hasn't driven or used other cars that cost 100k.

It's such a pity that such a detailed design could have such a thing overlooked. If JLR want to charge top marque money sort the detail. These cars make JLR over a billion per year and they employ what seems like a 75 year old Latin teacher with an ability for computer code to sort out a logical but impractical interface. It's grand if your parked but rubbish on the move. I'm sure Cornelius though he had the perfect system sitting at his desk with his slippers on, but no one tried it on the M25 at 75 mph in the rain.

The onboard computer has to make ABS decisions by the millisecond and the terrain response must make millions of calculations but the screen takes one whole second to decide which letter you pressed and then another to display it. Too slow for words.