Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

How Google's autonomous car navigates city streets

Google's self-driving car has been on the road for five years now, at various levels of autonomy. From the ease and relative serenity of California's arrow-straight highways, the car drove hundreds of thousands of miles with a greater level of concentration and mastery than the wandering attention spans of humans could accomplish. In 2012, Google shifted from the freeways to the cities, navigating a far more convoluted set of challenges: the slow-speed chaos that comes with any city, any suburb, any place with people and cars in it.

Porsche 959 prototype to cross the block at Barrett-Jackson

When Professor Helmuth Bott arrived at the fledgling Porsche sports-car company in 1952, he was in his late 20s. The young engineer's first assignment was setting up a gearbox test stand for the company's new all-syncromesh Type 519 transaxle. Thirty-one years later, he gave the go-ahead for the development of a car that was to be the ultimate bleeding edge of what Porsche knew about building a rear-engined sports car.

Bugatti Veyron ‘Rembrandt Edition’ (2014) first official pictures

By Ollie Kew First Official Pictures 03 March 2014 19:00 Every time there’s an international motor show, Bugatti looks sheepish and scuffs its shoes when the teacher asks for its homework. ‘Not done it, miss’. While Koenigsegg pulls the wraps off a car with almost 150bhp more than the Veyron Vitesse, all Bugatti can muster is yet another spurious special edition.