That's way too generous on the stats... The Tigron would nerf EVERY ship.
Fury Icaras is the closest competition:
Speed: 100 =
Thrust: 75 <
Handling: 75 <
Shield: 60 <<
Your Van-Uber would pretty much nerf everything too, with the closest comparison being Harimau:
Speed: 90 =
Thrust: 75 <
Handling: 90 <
Shield: 70 =
Those ships would completely unbalance the game. Van Uber was historically very flimsy. Tigron was historically bad at handling. Presently, Tigron is a good niche role between Icaras and Piranha for the 100 speed stat ships, and Van Uber is kind of a mix in between Feisar/AG Systems and Harimau.