Desmosedici is a compound word made from the Italian for sixteen, "sedici", and the name of Ducati's trademark desmodromic valve design. The DOHC 16 V4 engine is composed of two 90-degree L-twin components held together in a tubular steel truss-frame, with swing arm and rear shock pivots directly attached to the engine in a truly original fashion. The sleek and powerful bike was piloted in its debut 2003 MotoGP season by L. Capirossi, former 125 and 250cc class title holder, and World Superbike Champion T. Bayliss. The GP4 really showed its stuff during its 2003 debut season, taking 3rd place at Suzuka and winning 1st at Catalunya. Maintaining the same basic structure in 2004, Ducati brushed up everything from the engine to the body to make an even higher performance superbike. While the Desmosedici GP4 had a difficult first half of the season, it began to show results towards the end, with L. Capirossi winning 3rd place in round 15. T. Bayliss also took 3rd in the final round, ending Ducati's season on a high-note.

Italian rider Loris Capirossi took victory for Ducati, and his first personal win that season, at the Japan Grand Prix held in Motegi on September 18th 2005. After capturing the pole position on the first day, Capirossi swept to victory on the second day, as well as laying down a new Motegi track record on his third lap.

• Separate parts allow accurate depiction of each rider's custom seat, further enhancing realism

• High quality Cartograf decals for Capirossi's No.65 bike and Bayliss's No.12 bike

Paints recommended by Tamiya:

• TS-14 Black
• TS-17 Gloss Aluminium
• TS-29 Semi-Gloss Black
• TS-49 Bright Red
• X-10 Gloss Gun Metal
• X-11 Gloss Chrome Silver
• X-12 Gloss Gold Leaf
• X-2 Gloss White
• X-26 Gloss Clear Orange
• X-31 Gloss Titanium Gold
• X-32 Gloss Titanium Silver
• X-8 Gloss Lemon Yellow
• XF-16 Flat Aluminium
• XF-23 Flat Light Blue
• XF-56 Flat Metallic Grey
• XF-6 Flat Copper
• XF-63 Flat German Grey
• XF-7 Flat Red