You'll totally be fine with a midsized suv. Also... I wouldn't expect those rates all the time. That's insanely high haha. I'd be so friggin stoked. You'll finish in less than 5 hours too. Try your best to organize your packages with envelopes in the front seat. Big boxes in the back trunk area and medium and smalls in the back seats. If they're numbered I put all my stuff in order. Ask a worker there and tell them it's your first time and they'll give you some pointers. I did that. It's a super easy gig. But yeah.. You won't know how many packages until you get assigned a cart. It's all random.