Who does luxury long-wheelbase executive cars best? To find out, we’ve pitted the Audi A8L 50 TDI Quattro against the Mercedes-Benz S 350 d AMG Line L in one our typical Parkers twin-test reviews.

Here, we take a look at how the cars drive (by trying to pour non-alcoholic prosecco in the back while taking on a slalom course), what the technology and interior is like, plus how they fare in a drag race.

Parkers Video Manager James Dennison and Senior Reviewer Tom Goodlad are your guides.

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Read our full Audi A8 review: https://www.parkers.co.uk/audi/a8/

Read our full Mercedes-Benz S-Class review: https://www.parkers.co.uk/mercedes-be...

Audi A8 (2018 onwards) for sale | Used Audi A8 cars (including A8L) |
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Find a Used Audi A8 for sale on Parkers. With the largest range of second hand Audi A8 cars across the UK, you will be sure to find your perfect car at the right price.

Mercedes-Benz S-Class (2013 onwards) for sale | Used Mercedes-Benz S-Class cars | Parkers

Find a Used Mercedes-Benz S-Class for sale on Parkers. With the largest range of second hand Mercedes-Benz S-Class cars across the UK, you will be sure to find your perfect car at the right price.

New Audi A8s for sale: https://www.parkers.co.uk/audi/a8/for...
Used Audi A8s for sale: https://www.parkers.co.uk/audi/a8/for...

New Mercedes-Benz S-Class for sale: https://www.parkers.co.uk/mercedes-be...
Used Mercedes-Benz S-Class sale: https://www.parkers.co.uk/mercedes-be...

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