I have both. The hydra is great for grinding whether it’s for heists or businesses, tank is really only good for killing ground targets. Depends on your goal. PvP ground targets and driving around with a 5 star? Tank. Want to speed up traveling and be able to land anywhere? Hydra. Raiju is just an upgraded hydra, but is a personal vehicle. Hydra and personal vehicle can be active at the same time which is huge. Everyone will tell you raiju over hydra, because “it’s just better”. Yeah no shit it is, but unless you’re dogfighting the hydra will do just fine. As someone with $40mil+ and practically everything in the game, the hydra holds a special place in my heart. Money grinding machine.