Good news for European drivers looking for directions with their iPhones: TomTom on Monday announced that its car kit for the iPhone is now available, both from TomTom’s own Web site and Apple’s online store.

Developed to complement TomTom’s turn-by-turn direction software for the iPhone, the car kit provides you with a secure mount that lets you position the iPhone on your dashboard or windshield, just as you would use a dedicated-purpose TomTom device. It rotates to allow you to use the iPhone in either portrait or landscape mode, and lets you pop out the iPhone with a twist.

The kit also includes a built-in GPS receiver that, according to TomTom, reduces the likelihood that you’ll drop out of a GPS connection where GPS reception is limited — densely-developed urban areas with lots of tall buildings, for example, or forested regions. The GPS receiver also provides improved positioning.

Also included is a built-in loudspeaker and microphone; the loudspeaker announces voice instructions, and the microphone helps you make or receive calls hands-free while driving. Other features include the ability to charge the iPhone’s battery, or play iPhone music through the auxiliary out port, to your car stereo (using the vehicle’s aux in port, if so equipped).

Compatible with the iPhone 3G and 3GS, the TomTom Car Kit for iPhone costs €99.99. Countries where the kit is available include Austria, Belgium, Denmark, Germany, Finland, France, Ireland, Italy, Luxembourg, Norway, Portugal, Spain, the Netherlands, the UK, Sweden and Switzerland.