26 years ago I had a 1978 1750 HL. I have fond memories of the Maxi. It drove well, was very comfortable and roomy. All the seats could be folded down, the rear backrest could be folded down backwards as well, creating a big bed. This was very convenient to transport long things, with the tailgate closed! The 5-speed gearbox was located in the engine sump, making it very stubborn when the oil was cold. It worked good enough when the engine oil had warmed up. Technically a scaled-up mini, it was very easy to work on the engine and transmission, due to the space available. I have the Airfix kit in the stash, but would like to have another one t actually build!
