What would you recommend instead of a BMW M5?

We've had three BMW 525i automatic cars in succession over the last fifteen years, and we love the ride, the space and the performance. I'm thinking about perhaps moving up to a two-year-old BMW M5, but...

can you recommend a suitable, powerful replacement for my Octavia Estate vRS?

I currently own a 2005 'old shape' Skoda Octavia Estate vRS. It has been a great car with plenty of performance, and is totally reliable and flexible. I fancy a change and will appreciate your advice on...