The older models were 500w and the newer models 1000w
Amazon have terrible prices for these Kmix's I'm surprised they don't price match. Good price for these Kmix imo is anywhere £180-200 imo. I paid about £180 for mine from co op though just the white version and no overpriced blender. Good machine, feels very quality and used it a lot for kneading bread and a few cakes so far. People say they bought these much cheaper but those were older models (nothing wrong with that) which is why were a bargain.
This is the 1000w also available in 500w which is usually cheaper
I noticed that afterwards. I thought I had deleted my comment. Maybe make it more obvious in the title? As others have said, the mixers do frequently go for much cheaper if you can wait.
Lowest this model has been on Amazon is £219. https://uk.camelcamelcamel.com/Kenwood-0W20011141-Stand-Mixer-Litre/product/B072175L1X