Even without its first owner being the raspy-voiced rock star Rod Stewart, this 1977 Countach LP400 Periscopio is a rare and precious Lamborghini. LP400 is the designation for the first production version of the Countach and shows off the original clean lines of the wedge design before it evolved into a more angular and flared supercar. Only 157 LP400 Periscopio models were made, so-called because of a small periscopic mirror installed in the original prototype's roof to try and make up for the terrible rear visibility.

When he bought it, Rod Stewart was already a huge Lamborghini fan having owned three Miura models and was last seen driving a Gallardo Spyder. Stewart went on to buy more of the V12 powered Countach models, but this one, now up for auction through RM Sotheby's, he bought in Australia while recording the album "Blondes Have More Fun."

Stewart then had the LP400 Periscopio transported to his home in Los Angeles, where he started having it modified. That wasn't unusual for first-generation Countach models and was done to keep up with the developments made. The first thing he did was have the wide Gotti wheels fitted along with a mini spoiler. Later additions included a full wide-body conversion in line with the Countach LP400 S and a set of Campagnolo Teledial wheels. Later, he took the LP400 Periscopio back to the UK, and there the modifications because extreme, including adding a Targa roof conversion and a full-width rear wing.

The rock star kept the Countach until 2002, a full 25 years before he sold it. The new owner kept modifying the car, including a right-hand drive conversion. Its third owner picked the car up in 2013 and decided to return it to its original specification and form but leaving the right-hand drive conversion intact. It was restored to factory spec in Italy by high-end specialists and looks just as it would have when Stewart first saw it on a showroom floor in Sidney, Australia. The car is currently in Germany and being auctioned in France by RM Sotheby's. It's expected to fetch up to $1 million.