As it was covered in the M30 information, there was not additional trim levels for the M30. There was either coupe or convertible.
Someone has been telling people there is an “M30t” edition, The “t” stands for “touring package”. This “t” package was NEVER available for the M30. G20 and J30 as well as others in the line up do have a Touring package… but not the M30.
While there are some small changes between the years, there was no higher or lower trim available. Only additional options such as a car phone and other accessories.
AGAIN, THERE IS NO SUCH THING AS AN M30t!