Mate, use Europa Consultants
Welcome to Europa Consultants on 0845 058 9966
They do not contact your insurance, only thr 3rd partys. It is completely legal and my family and friends swear by them. They send you a like for like car (my bro got a Lotus Elise).
See this :
Europa can offer, subject to availability, an extensive range of replacement vehicles to suit most requirements;
Group A - Nissan Micra 1.0, Ford Ka 1.0
Group B - Ford Fiesta 1.2, Vauxhall Corsa 1.2, VW Polo 1.2
Group C - Vauxhall Astra, Ford Focus
Group D - Renault Megane Scenic 1.5D, Ford Focus 1.6, VW Golf GT TDi incl. DSG
Group E - VW Passat, Ford Mondeo, Honda Civic 2.2D
Group F - VW Golf GTi
MPV - VW Touran, Renault Espace
Prestige - Audi A3, Audi A6, Mercedes C Class, BMW 3 Series, BMW 5 Series, Mercedes E Class
4x4 - Land Rover Discovery 4 3.0 TDV6
Sports - Porsche Boxster, Porsche Boxster PDK, Porsche Cayman S, Lotus Elise S
Luxury - Bentley Continental GT, Bentley Flying Spur
High Performance - Lotus Exige, Aston Martin V8 Vantage
Europa also has access to commercial vehicles from small vans right through to 44 ton Articulated Lorries. Automatic cars, cars with tow bars and dual control vehicles can also be provided. Please ask for more details.
You will fall under prestige, so would get one of those on the list the next day. They are really polite and helpful and as it doesnt go through your insurance, it is the same as using a solicitor except you dont have to pay any fees.
Hope this was helpful mate, these guys are awesome.