Buying a used car - is four previous owners too many?

When buying from a dealer, should I be put off if the car has had lots of previous owners? I've found a nice Lexus CT 200h with 63k miles on the clock, but the history shows four previous keepers. How...

What should I look for before buying a 2006 Jaguar X-Type?

What should I look for before buying a Jaguar X-Type? It has a new clutch and flywheel.