Automatic Car Wash, Open 24 hours a day. Laserwash 4000 car wash equipment measures your vehicle for a nice consistent clean. “No Brushes, No Scratches, Just Squeaky Clean”! Located between the Towns of Blacksburg and Christiansburg, near to the New River Valley Mall, off of S.Main Street. Convenient from both Towns and Virginia Tech, next to Firestone Tire Center and Wilco-HESS.