It's approximately 143 miles (230 km) from Seattle to the Canadian border at the Peace Arch Crossing when driving along Interstate 5 (I-5), which takes about 2.5 hours to drive.
Yes, you can rent a minivan from Seattle to Vancouver. Common models include the Chrysler Pacifica, and companies like Budget and Avis offer this service.
Yes, you can rent an SUV for travel between these two cities. Common models include the Chevrolet Suburban, Chevrolet Tahoe, and Toyota RAV4, available from suppliers like Avis and Budget.