Thanks Roger,
Checked the Bosch catalog at SuperCheap and the part number relates to a straight entry cap, tried Bursons but the Bosch or Echlin ones they could get are straight entry as well, they told me I need to go original equipment.
Called Hyundai, need to order in and are $90 plus GST
Did a bit of googling and there is a SAAB cap that is the same as the Hyundai one, have ordered one for a more reasonable $40 from a SAAB place in Melbourne. Will let you know if it fits.