Hi I recently bought a 1987 Mercedes 300E.....I think. The title shows it as a 260E but all the vin numbers everywhere match up. The car itself shows it is a 300E. What confuses me is that 300E didn't start having 2.6L I6 until 1990 that I can find with the M103 motor. In 1987 they were only produced with the 3.0L I6. While 260E in 1987 came standard with 2.6L I6. Is this possible or are there any specific parts I can check on the car to see if it is a 260E or 300E?