I think in the UK ADSL goes up to 8Mbps, but hardly anyone can get that because they live to far away from the exchange. I'm not sure what the fastest connection is on Cable but its faster then ADSL.
The problem is with the UK most peoples phone lines are old fashion cooper wires, when in fact what we need to get a decent connection is fibre optic cables, but the cost of up dating the telephone wire infrastructure is huge. It’s ok for Sweden you only have a population of about 8 million, the UK has a population of 60 million to cater for.