Mercedes W124 Diesel evolution

What a better combination for performance?
An 87 300D with a I6 3.0L Turbodiesel A 90 300D 2.5 turbo with a I5 2.5L turbodiesel A 95 E300 Diesel with a naturally aspirated I6 3.0L OM606 diesel.
I am assuming that the 87 would be the best performance?
I think the 2.5 is nearly identical to the 3.0 from the 87.... Only minus one cylinder.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.