Complex sentence: Some operators of the longest of Optare's minibus-derived Solo models at 7.0m commented that the wheelbase was too long, reducing manoeuvrability, which was resulted from the Solo's front axle ahead of the passenger entrance.
Split into simpler sentences: Some operators of the longest of Optare's minibus-derived Solo models at 7.0m commented that the wheelbase was too long, reducing manoeuvrability. This resulted from the Solo's front axle ahead of the passenger entrance.