Same here. Did the hummer to get TL goal back. Piece of cake, the SUV, katana and hummer cost only like 30 million and affected my stats zero.
checkout UX-Guy at lvl 81. He has 500 Hummers and 500 mercedes 500 city bus , 1015 bulldozer 1038 armored limos among other vehicles.
The real kicker is this guy has a whopping 579 sawn off, 1024 chain whips and 835 full combat gear. It would take over 1,642,840 respect points to purchase what he has all at lvl 81.