Lotus (and many other low-volume British cars) are known primarily by the license plate (registration number) in the UK, probably because they are visible and stay with the car all its life. I think keeping this info in the IMCDB would be useful. The reason I looked at ICMDB and noticed the issues with Lotus was that I was watching "The Yellow Rolls-Royce" and was wondering about the history of that particular car (and found out more than one was used).

As far as suggestions ...

First, I suggest standardizing the "Mark" numbered cars (Marks 1-4, 6, 8-10). The problem is what to standardize on. "Mark" and "Mk", and Arabic and Roman numerals were all used in promotional material produced by Lotus. Two books that list all Lotus cars (at the time of printing) standardize on "Mark" and Arabic numerals and then use Roman numerals in the descriptive text. Colin Chapman's biographer (who had a long-time association w/Lotus) use "Mk" and Roman numerals. A Lotus engineer who wrote a book on contemporary race car design in 1960 used "Mark" and Arabic numerals.

I think "Mark" and Roman numerals should be used.

So ...

The "IX" (http://www.imcdb.org/vehicles.php?make=Lotus&model=IX&modelMatch=1&modelInclModel=- on) would become the "Mark IX".

The "Mk6" (http://www.imcdb.org/vehicles.php?make=Lotus&model=Mk6&modelMatch=1&modelInclModel=- on) would become the "Mark VI".

The "VIII" (http://www.imcdb.org/vehicles.php?make=Lotus&model=VIII&modelMatch=1&modelInclModel=- on) would become the "Mark VIII".

These appear in the Model section.

In the product/chassis code section, "Mark 10" (http://www.imcdb.org/vehicles.php?make=Lotus&model=Mark+10&modelMatch=2&modelInclChassis=- on) should appear in the Model section as "Mark X".

The Eleven should appear in the Model list as "Eleven" and in the Chassis/Product list as "Mark XI", which it seems to do.