Where did you read that Steve? But also, how would someone remember seeing his car on the drive? Bamber wasn't a suspect until weeks later so no one would have been asked about him or his car until a time when he was being investigated.
Appendix 1 Carol Ann Lee:
Jeremy telephoned Julie from Bourtree Cottage around 10pm. He sounded "pissed off", telling her: "I've been thinking on the tractor and the crime will have to be tonight or never." Aware that he was referring to killing his entire family, Julie told him not to be stupid-he was just fed up because he had been stuck on the tractor all day. They spoke for about twenty minutes. He told her she might hear from him later, athough Julie "thought nothing of this."
Jeremy later described how, after ending the call, he had something to eat and drink and watched television before going to bed around 11:30pm. None of his neighbours heard anything from him. A local car valet who knew Jeremy by sight took a stroll around the village about midnight after drinking in the Chequers; he noticed a number of cars outside Bourtree Cottage, including Jeremy's Astra, but couldn't remember if any lights were on inside the property.