You can get various Roberts Radios here, some designed to look like your granny's old fifties number. Delivery in the UK is free and takes 3-5 days. The site is laid out well, with drop-down menus to take you to a particular model. There are lots of illustrations too. For a wider range of similar products try Hendon Car Radio , where you can choose from around 1,000 different car-related audio products, navigation systems and alarms.
Product information is a little on the brief side though.