Infiniti goes back to the Q

Infiniti will completely rename its product portfolio next summer, returning to the letter “Q” from the brand's early history for every car, and “QX” for every Infiniti crossover and SUV. The company is undertaking the change to prepare for a broader array of future products around the world, says Johan de Nysschen, worldwide president of the brand. Infiniti's current lineup of sedans will become the Q50, Q60 and Q70.

Smog could get worse as more people buy diesels

Britain could see an increase in smog as the popularity of diesel cars increases, warns a leading pollution expert from King’s College London. The smog-like conditions that have descended on the UK over the past week have been caused by dust blown across from the Sahara Desert mixing with harmful pollution in urban areas. This pollution comes from industry, as well as both petrol and diesel cars.

BMW Alpina B5 Bi-Turbo Touring (2011): first pictures

Alpina has released first details of the estate edition of its 5-series based B5 Bi-Turbo. The wannabe M5 Touring car will be officially unveiled at the 2011 Geneva motor show next week. Alpina has been tuning BMWs for more than 40 years with the factory's blessing and increasingly close collaboration. Presaging the recent move by BMW M to forced-induction engines, Alpina first turbocharged the 5-series when they launched the B10 Bi-Turbo of 1989.