Haase Junior Racing Go Kart Chassis, Kt100 Yamaha, Rotax, Komet, Briggs Lo206 on 2040-parts.com

July 17: A mystery and a helping hand

Driving very conservatively, at about 55 mph, I made it the 76.3 kms (47.3 miles) using only 9 kWh. That's 5.25 miles per kWh. That's also 8.5 kms per kWh.

One lap of the Web: A drive with Magnus and drifting an Jag XJ220

Unkempt Porsche trend-maker Magnus Walker's brand of customized 911 has the world buzzing. If the magazine covers and documentaries aren't enough, consider that one of his builds just sold for $302,000 at Gooding's Monterey Sale -- against a high estimate of $150,000. Pretty steep for a customized 911.

Tesla Model X Electric SUV production confirmed for early 2015

The Tesla Model X SUV (pictured) will start production in early 2015 The Tesla Model S electric car has been a bigger success than anyone could have guessed, and is probably the only electric car that offers a real alternative to an ICE car. But a one-model range is not a recipe for long-term success, so Tesla are planning on delivering a 4WD electric SUV and a BMW 3-Series EV to add to the Model S, with production of the Model X SUV now conformed for early 2015. In an email to customer who have already put a deposit down on the Model X SUV, tesla reveals that they will be building the first production prototypes this Autumn, and that proper production of the Model X will commence in early 2015.