Your Avis status - Preferred
Car type/class reserved (and maybe method used to reserve) - Intermediate with automatic transmission, booked at avis.com using my corporate rate (which I am allowed to use for personal travel)
Location - LHR Terminal 5
Dates or General timing (weekday/weekend, month, major holidays) - pick up May 9, drop off May 10 at Avis in Oxford

and to a lesser extent:

Your Avis status - Preferred
Car type/class reserved (and maybe method used to reserve) - Intermediate with automatic transmission, booked at avis.com using my corporate rate (which I am allowed to use for personal travel)
Location - Oxford, Oxfordshire, UK
Dates or General timing (weekday/weekend, month, major holidays) - pick up May 22, drop off May 23 at LHR T5