We’re not sure what’s got into The Lego Car Blog Elves this weekend, but they’re bringing back builds of a very classical nature. From the inventively old to the actually old now, and two absolutely beautiful Technic steam tractors from Flickr’s Nikolaus Lowe.

An unusual choice for a Technic build we think these – somewhat oddly – qualify for ‘Technic Supercar’ status, being equipped with working steering, brakes, piston and valve gear, and a two-speed transmission.

Head over to Flickr for the complete gallery of images, where you can also find a link to vote for Nikolaus’ design on LEGO Ideas, whilst we figure out how the Elves have been watching ‘Downton Abbey’.