Rubbish!
I paid £900 as a named driver on a 1.8l Ford Sierra as my first car. Then when I was 19 I insured a 1.3l Fiesta 3rd Party Fire and Theft with zero no claims for £700. Renewed it with 2 years NCB for £390 TPFT, but then scrapped the car, and will be setting up TPFT for £350 on my new Mondey with the 2 years NCB. Your not looking hard enough.
But you will realise, all cheap cars (Sierra £200, Fiesta £500) and have built me up some nice no claims. Try Bell.co.uk or Flexibell.co.uk for decent Zero NCB insurance. One thing however, avoid all things with a "young driver up a tree" image, such as small engined Corsas and Saxos, Fiestas and Clios and the like. Because of the demand from people just like you they keep there value and are higher to insure due to the image. Go for something obscure, maybe a Diesel Xsara, or a Rover 100 or something with a granny image. It will be cheaper to insure and cheaper to buy. I know someone who recently bought a Rover 100 with 60k on the clock in mint condition for £200. The owner only drove 6 miles a week now hed retired and had had it for years.