Ktm 65 Rear Sprocket Specialists Aluminum Sprockets 49t on 2040-parts.com

One Lap of the Web: Aural delights and a Citro

-- Ayrton Senna positively dominated the 1990 Monaco Grand Prix: he came in with the fastest qualifying lap, started on pole, set the fastest lap, led every single one of them, won the thing, beating rival Alain Prost in the process, then went on to win the 1990 World Championship. The above video was what it's like to ride onboard with the brilliant Brazilian in his McLaren-Honda, which screams like a madman down the Monaco tunnel. -- Five Citro

Porsche Boxster GTS and Cayman GTS revealed

The new Porsche Cayman GTS (pictured) will debut at the Beijing Motor Show Porsche has decided the Boxster and Cayman need the GTS treatment, so we get treated to both a Porsche Boxster GTS and Porsche Caymen GTS. Based on the Boxster S and Catmen S, both the GTS models get a Euro 6 version of the 3.4 litre flat six with an extra 15bhp, which means 325bhp for the Bosxster and 335bhp for the Cayman. Both come with a six-speed manual as standard but you can opt for 7-Speed Dual Clutch ‘box which allows the Cayman GTS to crack 62mph in 4.6 seconds and the Boxster GTS in 4.7 seconds.

Update: Google self-driving car is really just a transportation pod

Google will launch its own fleet of autonomous vehicle prototypes – with no steering wheels and no gas or brake pedals – as the technology giant begins a new phase of its self-driving car project. Google designed the car and plans to have about 100 test vehicles that are fully autonomous with extra safety features, company co-founder Sergey Brin said during a conference Tuesday hosted by technology blog Re/code in Rancho Palos Verdes, Calif. > See how Google's autonomous car navigates city streets here The New York Times reported Tuesday night that a Detroit-area manufacturer is building the cars for Google, which declined to name the manufacturer, according to the Times' story.