Welcome to the IG-1 Grand Prix, where teams of three fight it out in giant robots for the chance to be declared the greatest IG team ever. Up-and-coming Team Suzuku hopes to achieve this goal, so when a freak accident occurs, forcing rival Team Velshtein to withdraw, the group finally gets its chance to shine. But with the fierce Team Sledge Mamma as their first opponent, will these strapped-for-funds rookies have what it takes to play with the big boys, or is it all just a pipe dream?
The year is Future Century 60; much of mankind now lives in colonies surrounding the earth. After being ravaged by countless wars, every four years the dominance over the colonies is decided in a martial arts tournament called the Gundam Fight. This year marks the 13th tournament, and Gundam Fighters representing their colonies have begun to gather. Their purpose is to fight, and fight, until only one remains to claim the title "Gundam of Gundams." But Domon Kasshu, Neo Japan’s representative, has another secret mission; and should he fail, all of mankind may pay the price. Gundam Fight! Ready! Go!
Tournament competition with mecha.
Both of these have it. G Gundam is more about fighting for teritory or rule over all territories, and is 1 mecha vs 1 mecha for much of it, where IGPX is more of a trio of mecha in a team fighting, but you will get the same feel.
Unlike it's sorta sequel: IGPX is not high speed racing. So I see it more in kin to G Gundam. Anyhow, you might like one if you like the other.
On the planet Zi, Zoids are no longer used for military combat; instead, they are now being used for sporting events known as Zoid battles. The Zoid Battle Commission oversees these battles, enforces the rules, and declares the winners. In the midst of fierce competitions, one team aspires to rise to the top: the Blitz Team! With the help of Bit Cloud and his Liger Zero, the Blitz Team will compete against not only regular foes, but also the talented Harry Champ and the criminal organization known as the Backdraft Group!
Both of these shows are about a team of young pilots who use giant robots to fight in tournaments against other teams. The protagonist team in each case includes an arrogant but skilled (or lucky) guy as their primary warrior, a hard hitting female pilot, and a quietly skilled pilot. The teams in both shows are perpetually low on funds and pilot machines which appear to be of lower quality/condition than most of their opponents'.