Never mind benchmarks, how many PCs do you know that can do 211mph and accelerate from 0-62mph in just 4 seconds? Well, we found one at the British Motor Show that can.

This ultimate office on wheels is a Brabus SV12 Biturbo , based on a long-wheelbase Mercedes S600 limo with one of Brabus' legendary 6.3litre V12 'Rocket' engines, developing 730bhp, squeezed into it.

Naturally, it's the IT side of this £270,000 motor that interests us, although the eye-watering £24,726.70 (ex. VAT) price for the 'Business equipment' means that interest is purely academic.

For your money you get a retractable 15.2in widescreen TFT built into the headlining, an infrared keyboard with touchpad, a couple of multimedia screens built into the headrests and a laptop running what appears to be Windows Vista mounted in an electrically operated drawer in the boot.

There's also built-in mobile internet, sat nav and a console for a colour printer, apparently.

We certainly managed most of that in our car PC feature in the current issue of PCW, and certainly for a lot less cash, but we must admit we couldn't quite match the leather trimmings. Or the exhaust note...