They're all robbing bar stewards.
I've had one car installed with Direct Line for years and the price has crept up every year to the point where this year was absolutely ridiculous, as this car has some mods on it (B4's, Eibachs, poly bushes) and will be having bigger brakes and wheels this year I've gone with a company that will insure the modifications and give me a guaranteed value. The cost is nearly 50% cheaper than Direct Line...
The other car was with Aviva who decided to load up the price this year so I checked around and ended up insuring the car with...... Direct Line. This car is an identical model and engine size to the other one and is less than 6 months older, it's insured for 30K a year with business cover etc and they wanted less than any other insurance company and obviously less than the quote they'd given for the other car.... so call it what you like - Double standards, piss taking, random price generating, the whole insurance quoting system, whatever the company, appears to be ridiculous.