How about a motorcycle? The Dursley family had not had a pleasant summer.
Their odd nephew had come back, bringing along a notoriously infamous "fugitive." Although Harry had explained from the very beginning that Sirius was innocent, months of brainwashing still made them flinch whenever they laid eyes on Sirius's exceptionally handsome face.
More importantly, he was a wizard who could turn into a black dog at any moment.
Chapter 150