Just had a good result for renewing with Aviva
2010 Ford Transit 280 limited 5 years NCD(650l tank modification)
2011 Fiat Doblo Maxi 0 years NCD
2010 Audi A4 Avant 5 years NCD(in my wifes name)
Got my renewal quote for the above about 3 weeks ago=£1318.I phoned today and told them I would insure the car with them but not the vans as I had a cheaper quote elsewhere.The friendly bloke on the phone went away and sharpened his pencil and came back with a quote of £920 for the lot
Well chuffed with that,a saving of £398 on the original renewal quote