Rolls-Royce have dropped 50% over the last 12 months alone and no its not all recent!
Sealine who are one of the largest UK yacht builders is closing two of its factories and making 300 people redundant.
In a statement, the company said: “As economic conditions worldwide continue to worsen and are unlikely to change in the foreseeable future, Sealine is planning for a leisure marine market that will be smaller in the near and medium-term and will be scaling production output accordingly.

I don't imagine Aston, Rolls or Lamborghini will maintain sales in the short to medium term.

I don't think value has much to do with it,

Blackstone Group one of the largest private equity companies worth �30bn lost �84m in the last 3 months of 2007 and are selling the hotel side of the business.

I guess only time will tell.