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

Rinspeed Dock–Go Concept [updated]

The Rinspeed Dock–Go Concept car, devised by Frank M. Rinderknecht, will make its debut at next month’s Geneva motor show. It adds a 'backpack' to the Smart ForTwo city car, which can be changed depending on the needs of the driver, while a hybrid pack increases the operating range of the vehicle.

Mercedes fixes diesel injector problems

Mercedes say that a new injector system for C Class and E Class diesels with the OM651 engine have now been fixed. So extensive was the problem that many owners were waiting months for their cars to be fixed as Mercedes struggled with a mounting pile of broken cars and injectors that were failing. Mercedes tell us that the problem was fixed with the release of new injectors later in 2010, but Cars UK readers have continued to complain about their cars needing multiple visits to dealers with injectors failing multiple times (that original story garnered more than 500 comments from disgruntled Mercedes owners).

Audi RS7 Sportback refreshed with 190 mph top speed

Audi has fitted the RS7 Sportback with a series of mild styling changes only 18 months after its reveal at the 2013 Detroit auto show. Among the subtle visual modifications brought to the plush performance liftback is a lightly reworked front end. It features a restyled single-frame grille set within a slightly more structured bumper, bringing its appearance in line with less-powerful versions of the A7 Sportback revealed last week.