QUESTION/AID: Range VOUGE with 340 diesel hp vs. 510 Supercharge PS both year 2013

Dear people, After a test drive in a range 4.4 SDV8 (340hp) Built 2013 (120.000km) from a friend, I fell in love with the Range Rover Vouge (In Design & Seat Comfort & Size, Driving, etc…)…! 😉 As a year-long Audi RS6 driver, I now want to buy such a used Range Rover VOUGE as a second car and would have found here just 2 x very nice but just engine technically different vehicles on the Internet! Now I wanted to give you your recommendation & experiences k urz begieren: 1) V8 diesel with 340hp vs V8 petrol supercharge 510hp general differences (purchase decision)?! 2) Both autobiography and 1st possession, both by 2013 2) of the vulnerability both with approx. 120,000km?! 3) of driving comfort..?! 4) I don’t care about fuel consumption…! 5) I drive a lot of long distance Salzburg – Milan Thank you for your feedback, Gerry