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

Listen: Upcoming Ford Focus ST to employ sound symposer

While BMW employs a digitally sanitized/perfected sound file to give M5 owners the proper sense of aggro urgency when motoring at pace, Porsche went a little more organic with its employment of a sound symposer to feed the 911's flat-six growl into the cabin of the extra-refined 991. Essentially, the sound symposer is an electrically controlled diaphragm in a tuned sound tube that brings the proper engine noises into the passenger compartment. It can be opened and closed by the car's onboard electronics to offer snarl when you want it and serenity when you don't.

Suzuki S-Cross production version at Geneva 2013

The Suzuki S-Cross – which arrived at the 2012 Paris Motor Show as a Concept – will arrive in production guise at the 2013 Geneva Motor Show. The Paris Motor Show last year saw Suzuki roll out a concept for a new C-segment crossover – the Suzuki S-Cross Concept – which was clearly close to production ready. So it’s no surprise that the production version of the Suzuki S-Cross is arriving at the Geneva Motor Show next month – before heading for a Suzuki dealer near you by the end of 2013 – looking very faithful to the S-Cross Concept design.

Dodge Charger recall prompted by headlight issue

It's been an unfortunate week for Fiat-Chrysler recalls. We reported yesterday that the company issued return-to-dealer orders for the Fiat 500L, Jeep Grand Cherokee and Dodge Durango. Now it turns out that owners of Dodge's muscle sedan may have a trip to the dealer in their immediate future.