Complex sentence: In both the UK and Europe, there were several choices of seat material and colour, comprising the standard Cirrus cloth, optional Matrix cloth, optional Alcantara/leather, or full pearlNappa leather seat coverings.
Split into simpler sentences: In both the UK and Europe, there were several choices of seat material and colour. Material-wise, you could choose from the standard Cirrus cloth, optional Matrix cloth, optional Alcantara/leather, or full pearlNappa leather seat coverings.