Saucer with lights, did not appear to be moving fast.

I was stationed in Meunchweiller Germany from May of 1965 until May of 1968.  At the time I was a cryptographic repairman for NATO’s Central Army Group (Centag).  This was the primary reason I did not report the sighting.  I was afraid that I would lose my clearance and not be able to work in my field.
	I sighted the object when my wife and a married couple stationed in Meunchweiller were on a weekend trip to Frankfurt.  I can’t remember the exact date but it was in the early spring of 1967.  We were on the Autobahn heading north.  I was driving; my wife was in the front passenger seat turned to her left talking to the couple in the back seat.  I looked to my right through the passenger side window and caught a glimpse of an object in the sky.  The terrain on the right side of the auto was a mixture of fields and small patches of evergreen trees.  The view was broken from time to time.  At first I thought it was a plane, possibly military.  Then there was an open field with no trees that gave me about a 5 or 6 second uninterrupted view.  The object was thin and came to a point on both sides.  It was gray semi dull aluminum color.  Along the centerline were several bright spots.  They radiated an orange/green, iridescent color.  It was in a swirling fashion, the colors did not stay in the same spot within the “light”.
The other passengers were absorbed in a conversation so I tried to view the object as long as I could.  The tree line came back and obstructed my vision from time to time.  Although at times I could still see it through the trees.  Then a large forest went by and I lost sight of the object completely.  I puzzled over it in my mind while the others were conversing about other things.  I am an aircraft fan of sorts, especially WWII.  It bothered me that I could not see a vertical stabilizer or a wing root from the perspective that I viewed.  At the time I did not consider it to be a possible UFO.
Later on I read an article about UFO’s and saw different impressions.  There was one that fit the object I saw exactly.  Only a few weeks had expired but then I realized my occupation in the Army.  I was not willing to take the chance of losing my security clearance because of the apparent mindset of such claims at the time.  Now that the equipment I maintained is totally declassified and you can see them on the internet I wanted to add maybe an insignificant sighting.  Maybe it was seen by someone else at that time and it would help in some way.
Witness indicates that the date of the incident is approximate.  PD