On Saturday we showed you the first pictures of the new Sirio BK Evo4 STI, spotted while track testing in Italy. Sirio have been in contact since and were kind enough to supply us with the first pictures of their .21 range of engines for 2008. As well as the green headed BK Evo4 STI (above), the new line includes other buggy motors such as the CL7 B, the CL7 B STI and the magnesium headed version of the BK Evo4. For circuit racers there are 2 motors to choose from, the RR STI and the CL7 R STI. Later this week we hope to bring you more information about the new Sirio engine line, as well as internal pictures of the motors, taken at the Nuremberg Toy Fair in Germany.