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One Lap of the Web: The Economist talks cars, Maria Sharapova's Porsche and crazy bikers

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- Have you ever seen two motorcycles going wheel-to-wheel at 200 mph in the rain?

Hyundai ix35 – UK details

The Hyundai ix35 will launch at the Frankfurt Motor Show But now we have more Euro details from Hyundai on the ix35 which will officially launch at the Frankfurt Motor Show next week. The new ix35 is longer and wider than the outgoing Tucson but is actually 20mm lower, although headroom is unaffected. As we already know, the ix35 is a pretty close call for the ix-onic concept we saw at Geneva, and features Hyundai’s new hexagonal grill.

Nissan simplifies tire inflation with its new warning system

Nissan will install tire-pressure-measuring systems on its Quest and Altima vehicles that alert the driver filling the tire when it reaches an acceptable level. Most people don't carry a tire-pressure gauge in their car. A new federal study shows that underinflated tires triple the risk of an accident.