Should I get scuffed alloys refurbed before selling my car or just trade it in?

I have a Mercedes-Benz E-Class which is three years old this June. Between my wife and, we have managed to scuff all the alloys a bit. Before I consider trading in, would it be better for me to have the...

I got a cracked alloy welded rather than replaced - could this invalidate my insurance?

When my Mercedes-Benz C-Class was about three months old, during a safety check, the dealer discovered one of the rear wheels was cracked (pot hole I guess - but no loss of pressure). Rather than pay £600...