Honda Rune Front Tire on 2040-parts.com

BMW M4 Convertible revealed. Price from £60,730

The BMW M4 Convertible (pictured) revealed We reported last month that the new BMW M4 Convertible would debut at this year’s New York Auto Show, and here it is ahead of that debut complete with trick folding metal roof, 425bhp and a price tag that just nicks over the £60k line. A direct replacement for the old M3 Convertible, the M4 Convertible will cost you just over £4k more than the M4 Coupe, but for the extra money you get the same car but with infinite headroom – and a big weight penalty. The new 3-piece metal folding roof can be tucked away in a mere 20 seconds at the flick of a switch, with better noise insulation than the M3 Convertible had and more room in the boot when the roof is down too.

Citroen Cactus stars at the 2013 Frankfurt Motor Show

Citroen's big news at the 2013 Frankfurt Motor Show was the launch of the Cactus concept car. This spikily named show car is more than just a wacky concept - the Citroen Cactus marks the relaunch of the French brand's bread-and-butter cars. Struck by the success of the DS models, it's now hoping to achieve similar success with a rejuvenated range of C-line models.

2013 Mazda CX-9 debuts before Australian show

Mazda will fully reveal the 2013 CX-9 SUV at the Australian International motor show in October. It appears that Mazda couldn't wait that long, as the company just released a few images of the redesigned people carrier, which now looks like the big brother to the CX-5. It features the Kodo design language that we've seen at several auto shows, which lends it a sportier look than previous models.