Abstract: A releasable vehicular boot coupled to a vehicle's tire is designed to immobilize the tire. The vehicular boot includes a triangular sheet having a hole situated proximate the first corner of the sheet, a first chain having a first end coupled to the second corner of the triangular sheet and a second end coupled to the third corner of the triangular sheet to create a loop in the first chain, and a second chain having a first end slidably mounted to the first chain. The loop in the first chain is disposed around the tire. The second chain is disposed through a suspension component of the vehicle and the hole in the triangular sheet. The second end of the second chain is coupled to a locking mechanism to prevent a detachment of the second chain from the hole in the triangular sheet.