Noticeable differences apply to Marklin’s Era III Class E 18 electric loco both on the outside and inner workings.
The Class E 18 electric locomotive was designed for express train service, it was built over a 20 year span starting in 1935 in Germany and Austria. Although it was designed for express train service it subsequently became an important general purpose locomotive. Marklin’s 88080 and 88088 are based on post war (Era III) prototypes.
Marklin 88080 was released in 2002, it stayed in the program until 2008. This attractive locomotive was the first mini-club Class E 18, its features include 5 pole motor and LED headlamps.
The recent release 88088 features a new motor designed to be maintenance-free: no longer are worn brushes changed out as was the case with the earlier 3 pole and 5 pole motors. The paint scheme is similar for both locomotives, but paint sheen varies: 88088 is matte (prototypical?), and 88080 is glossy which gives the paint an appearance of more saturation and maybe bluer looking.
Both generations of the E 18 are good runners with the 88088 running a little quieter and better at slow speeds. It should be noted that earlier versions of the E 18’s performance are exceptional: in my opinion no great improvement between the new release and the older versions, I don’t think a trade-in of the old for new is warranted: save your money for other new releases (?). Perhaps others may feel differently, but I have felt since its release in 2002 the 88080 ran superbly, and I still do, including all the various releases since 2002.
How do they look? Paint scheme of 88088 maybe more prototypical (?). Paint is brighter on the 88080 due to its gloss finish.
Siding: releases of the E18 have included a bright pink/red instruction sheet placed over loco in box with instruction to store loco in box with pantographs fully extended thus to avoid breakage of the delicate roof details and wires rendered in plastic. This loco did not include this warning slip, but it is advised to store your loco with pantographs up!