New tires and a proper alignment for my van: priceless. It really cruises now, steers easily, tracks, no rolling resistance, and moves loads safely. I got the Hankook RA08 light duty truck tires to replace the brand new passenger car tires that had gotten completely chewed in under 1000 miles due to a very bad alignment. Shame on the guy who sold it to me. Tires. Next up: engine!