E320 or E430?

[rjk]

I have narrowed my search for a sedan to these 2 models.
I currently have one of each ready to be purchased.
One is black, the other white.
Which one should I buy?
Seriously, I wish it was that easy.
They both have excellent service histories.
Both are fully optioned, clean and drive flawlessly.
Both are '99 models and prices are only $2k difference.
Is there anything I should know about either model beyond the obvious (430 will eat more gas)?
I plan to do as much of my own work as I have tools for.

Thanks in advance for your input.