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

Caterham Sevens reimagined as classic F1 cars

You could never really call the Caterham Seven modern – its look has remained fundamentally unchanged since the original Lotus Seven (the car Caterham would eventually buy the rights to build) launched back in 1957. Today, the engine is still in the front, those delightfully exposed front wheels still float over bumps and the frog-eyed headlights serve as a reminder of years gone by. And now the modern Seven has been taken right back to the period where it was first conceived, with these Grand Prix-style racers from Zolland Design.

Porsche 911 GT3 RS

Porsche has released pictures of the most intense 997 yet, the GT3 RS. Due to be released in spring next year in North America, the RS produces 415PS from its naturally-aspirated 3.6l flat-six, enough for a 0-62mph time of 4.2 seconds. Power is sent through the rear wheels only, whose surrounding shoulders widen by 43mm to accommodate the extra track.

2015 Prius said to have even better fuel economy

The next Toyota Prius will get “significantly better fuel economy in a more compact package that is lighter weight and lower cost,” according to Satoshi Ogiso, the Prius program's chief engineer. Ogiso, who is also Toyota Motor Corp.'s managing officer, said the next-gen Prius' performance will reflect “significant advances” in battery, electric-motor and gas-engine technologies. He said Toyota is looking at improving miles per gallon to 55, compared with today's 50 mpg and that the next-generation Prius electric motors will be smaller and more powerful; in addition, its gasoline engine will be among the world's most efficient.