bkev said:

So was Diamonds are Forever for about 5 minutes :P

Including the single-worst fight in the entire series. ;)

You can make up any continuity you want, but when the producers started choosing stories at random in the 60's, any and all notion of order went out the window. The character is basically the same, just affected by the time of production and the tone desired.

But why was the DB5 in Skyfail you ask? How does it make sense?

It doesn't. Someone must have thought it would be a cool and immediately recognizable moment and not thought about the implications.