50 (25 Pair) 5/16" (8mm) Nord Lock Vibration Proof Lock Washers on 2040-parts.com

Lamborghini Aventador J at 2012 Geneva motor show

There maybe other Italian sports car manufacturers looking to hog the limelight at the 2012 Geneva motor show (and Ferrari and its 730bhp F12 is one of them) but Lamborghini will vie for attention with the Aventador J. A two-seat, open top speedster based on the Aventador LP700-4, it has some intriguing bits of carbonfibre tech and highly individual design. Named 'J' after the FIA’s Appendix J that governs the tech spec of race cars in certain classes, it’s proper bedroom wall material – but little boys and girls are unlikely to ever see it on the road as it’s a one-off and will go to a lucky owner after its appearance at Geneva.

Cadillac CTS-V Sport Wagon (2010) first official pictures

This is the Cadillac CTS-V Sport Wagon, with a 6.2-litre supercharged V8 and an even bigger boot. That’s right, only in the V-series range of CTS Caddies it’s detuned from the ZR1’s 638bhp and 604lb ft to 556bhp and 551lb ft. Still, that’s more power than the M5, XFR, E63 or Panamera Turbo can muster.

Drink Driving rules get tougher

There’s been talk for some time that the government are planning to reduce the current drink driving limit, but, sensibly, it seems they’ve decided, at least for now, that there’s little to be gained by shooting drivers for having a rum baba for desert. Instead, the rules are to be toughened up to make persistent drink drivers jump through more hoops before they can get their licence back. No longer will it be enough to simply get to the end of their ban, they’ll have to prove they are no longer reliant on alcohol and pass a medical.