Complex sentence: The styling exercises were mainly undertaken in 1956 under Colin Neale and other aspects of R&D followed, and it is likely a recognisably similar car could have been introduced in 1959 subject to different senior management decisions.
Split into simpler sentences: The styling exercises were mainly undertaken in 1956 under Colin Neale. Other aspects of R&D followed, and it is likely a recognisably similar car could have been introduced in 1959 subject to different senior management decisions.