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News watch July 2012: today's auto industry news

Welcome to CAR Magazine's news aggregator as we round up the daily stories in the auto industry. Top tip: news summaries are added from the top hour-by-hour Tuesday 31 July 2012•Porsche SE recorded a first half profit of €1.15bn, in comparison with €149m for the same period in 2011. The enormous jump has come not from directly selling cars, but from the group's investments in Porsche Zwischenholding GmbH and Volkswagen AG (Porsche SE)•Reuters suggests Germany's car market is in recession, but few outside the industry would know it, thanks to a controversial sales practice that inflates official statistics and paints a flattering picture of demand.

Five tips to keep your tires in top shape

Tire safety isn't exactly the sexiest topic in the car universe, but it's National Tire Safety Week. This is a good reminder to those of us who are generally more concerned with fun stuff like horsepower to spend a moment thinking about where the rubber meets the road. “Ten years ago, NHTSA and AAA helped Rubber Manufacturers Association (RMA) launch National Tire Safety Week,” said Charles Cannon, RMA president and CEO.

Alfa Romeo roadster to be twinned with Mazda MX-5

Mazda and Fiat today announced a new deal to develop future sports cars jointly. A new affordable Alfa Romeo roadster will be built - in Japan - from 2015. The non-binding memorandum of understanding covers the development and manufacturing of a new roadster for the Mazda and Alfa Romeo marques based on Mazda’s next-generation MX-5 rear-wheel-drive architecture, according to the statement issued this morning.