2011 Sea-doo Rxt-x 260 Speedometer Gauge Instrument Read 278002657 on 2040-parts.com

Future Audis may time traffic lights for you

Here's a trick efficiency-chasing hypermilers have been using for years: spotting the cycles of stoplights from 100 to 200 yards out and letting the car coast up to the light just before it turns green, then carrying on without ever letting the car come to a complete stop. These hypermilers, along with professional truck drivers, do this because they know that accelerating from a standstill burns the greatest amount of fuel, and because letting a car coast up to the light with the automatic transmission downshifting by itself is easier on the transmission than stomping on the brakes right beneath the stoplight. Oh, and it's easier on the brake pads as well.

Koenigsegg Agera One:1 is world’s first “megacar”

Even in a world recently introduced to the Ferrari LaFerrari  (sold out), McLaren P1 (sold out) and Porsche 918 Spyder (er… ) hypercars, boutique Swedish supercar maker Koenigsegg has just made an extraordinary announcement. At the 2014 Geneva Motor Show, it will reveal the Agera One:1 – which Koenigsegg has dubbed the world’s first "megacar". Thing is, having looked at the spec, we believe it.

Cadillac XTS Platinum at Detroit motor show 2010

This big beast is the Cadillac XTS Platinum Concept, unveiled at the 2010 Detroit motor show. It’s still a show car for now, but it will inspire a luxury Caddy limo that will go on sale in 2012. Yes.