Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

McLaren gives MP4-12C power and gadget upgrade

McLaren has announced a surprise package of upgrades which will be offered to existing owners of its MP4-12C supercar, free of charge. Owners will benefit from more power, a tunable engine noise and fewer foibles - yes, the tricky swipe-to-enter door handles are banished for good. So what exactly has changed on the McLaren MP4-12C for 2013?

Car Insurance ‘Black Box’ a good idea? We find out.

We’ve been testing a new ‘Telematics’ App from Confused.com which mimics the ‘Black Box’ technology insurers are offering in an attempt to make car insurance cheaper. The inexorable rise and rise of car insurance premiums is a fact of life, and will continue until government gets a handle on ambulance-chasing lawyers and the UK’s idiotic whiplash claims industry. But if you’re looking to find a way to cut your insurance premiums, then having a ‘Black ‘Box’ fitted to your car to monitor your driving so you get charged for how much – and how well – you drive looks a promising idea.

Hood-ornament quiz--the answers

Were you able to separate the Cadillac from the Packard in our hood-ornaments challenge in the April 5 issue of AutoWeek? We wanted to know whether you could identify eight classic cars solely by their hood ornaments. Here's the place to confirm your car-knowledge prowess, or to recalibrate your hood-ornament history.