There is no Sportline trim, only 60 and 85 in Standard & Edition tims or the 85x (All Wheel Drive) in Sportline Plus trim (there is also the vRS but that’s not available on Motability).
The Parking Package Plus is only available as part of the Maxx Package, this is an extra £4,405 on Standard and Editon trims and £3980 on the Sportline Plus trim.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!