My opinion is avoid US car. Choose Japanese, or Europe brand. A used car should bw within your budget.
US car may give more accesories, but after 3 years, easily has minor things to repair. The labor charge is the main consideration, but not the spare part price.
Full size sedan should be able to fit 5. If you want more space, then SUV, MPV, or crossover.
Recommend:
1. Toyota Camry, Highlander, RAV4, 4Runner
2. Honda Accord, CRV, Oddysy, Pilot, Element
3. Toyota Highlander
4. Honda Oddysy
5. Acura MDX, RDX
6. Merz Benz R class, M class
7. Audi Q7
8. BMW X3
9. Infiniti FX35, FX45
10. Lexus RX 300, RX 350
11. Mazda CX-7, forgotten their old model SUV name
12. Nissan X-Trail, Murano, Xterra, Pathfinder
13. Volvo XC90