For anyone interested in Avis prestige this is the full range:
Aston Martin DB9 Coupe
Aston Martin DB9 Volante
Aston Martin DBS
Aston Martin V12 Vantage
Aston Martin V8 Vantage
Aston Martin V8 Vantage Cabriolet
Audi A3 Cabriolet
Audi A5 2.0 Sportback
Audi A5 2.7 Sportback
Audi A5 Cabriolet
Audi A5 Coupe
Audi A8 SE Exec 3.0 TDI quattro
Audi Q5 4x4
Audi R8 V10
Audi R8 V10 Spyder
Audi TTS Coupe
Audi TTS Roadster
Bentley GTC
BMW 3 Series Touring
BMW 330d M Sport
BMW 5 Series
BMW 5 Series Touring
BMW X3 4x4
BMW X5 4x4
Ferrari 430 F1 Coupe
Ferrari 430 Spider
Ferrari 458 Italia
Ferrari California
Jaguar XF
Jaguar XJ 5.0 V8
Jaguar XK R 5.0 Cabriolet
Jaguar XK R 5.0 Coupe
Lamborghini Gallardo LP560-4 Spyder
Maserati Quattroporte S
Mercedes C Class Estate
Mercedes C Class Sport
Mercedes E Class Cabriolet
Mercedes E Class Coupe
Mercedes E Class Estate
Mercedes E Class Sport
Mercedes ML350 CDI 4x4
Mercedes S Class
Mercedes SL500
Mercedes Viano 8 Seats
Nissan GTR
Porsche 997 Turbo PDK (Gen 2)
Porsche Cayenne 4x4
Porsche Cayenne GTS 4x4
Range Rover Discovery 4 HSE 4x4
Range Rover Sport Autobiography 4X4
Range Rover Sport Supercharged HST 4x4
Range Rover Vogue 4x4
Toyota Prius Hybrid
Volkswagen Golf 2.0 GTD
Volkswagen Golf R
Volkswagen Scirocco
Volkswagen Touareg V6 TDI 4x4
I've driven the vast majority of the Avis UK normal fleet as well as some of the prestige range and all of the Select series, so happy to recommend if anyone needs some advise...