Sealed Power V4586 Exhaust Valve on 2040-parts.com

Muscle-car icons immortalized in new postal-stamp set

Perhaps sensing that it's at risk of going the way of the carbureted big-block and leaded gasoline, the United States Postal Service is apparently willing to try anything to boost its bottom line. Though we're sure its recently announced line of postal worker-inspired apparel will be a runaway (and runway) success, we're glad to see the USPS reaching out to the automotive-enthusiast community with a new set of limited-edition stamps that commemorate the American muscle car. We told you about the stamps earlier this year, but we can now confirm the lineup.

Video: Tesla Model S Alpha undergoes on-track testing

The electric-car wizards at Tesla have released a sneak peek of the upcoming Tesla Model S Alpha undergoing on-track drive testing. The video provides a quick glimpse of three eerily quiet sedans, but not much more. Scintillating it's not, but it's nice to see the Model S Alpha sedan getting closer to production.

New Datsun makes its first appearance

The first new Datsun in a generation )pictured) will be revealed on July 15th As we reported in 2012 Nissan, having spent countless hundreds of millions replacing the Datsun name with Nissan on its cars a generation ago, decided to revive the Datsun brand for a new range of affordable cars for emerging markets. It looks like the new Datsun – codenamed K2 – will be a mix of the current and last generation Micra with new styling and pitched at around £3500 when it launches in the Indian car market. With the same – but de-tuned – 1.2 litre petrol engine as the Micra, the new Datsun is aimed at cars like the Indian market Hyundai i10 and Maruti, and sales are expected to start in early 2014.