Glossary entry (derived from question below)
English term or phrase:
like a rolling couch
Portuguese translation:
como um sofá sobre rodas
English term
Brazil
Experienced and reliable translator
Native in: Portuguese 
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English
rolling couch
which is like a rolling couch.
Nov 24, 2017 13:01: Matheus Chaud changed "Edited KOG entry" from "<a href="/profile/83285">Lilian Magalhães's</a> old entry - "rolling couch"" to ""(...) que é como um sofá sobre rodas""
Proposed translations
Brazil
Trusted by over 15 pharma companies
Native in: Portuguese (Variant: Brazilian) 
, English (Variant: US)
Works in: English to Portuguese, Portuguese to English, Spanish to Portuguese, and 1 more.
(...) que é como um sofá sobre rodas
United States
BA in Transl., MA in ESL, 15 yrs of exp.
Native in: Portuguese
Works in: English to Portuguese, Portuguese to English, Spanish to Portuguese, and 2 more.
sofá rolante
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Note added at 2 hrs (2017-08-27 20:32:59 GMT)
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Difícil saber que ele quer dizer exatamente com isso. A meu ver, é só uma comparação.
Portuguese to English, English to Portug
Native in: English
Works in: Portuguese to English, English to Portuguese
poltrona andante
Mexico
Apps, Metallurgy, Production and Lean
Native in: Portuguese
Works in: English to Portuguese, Spanish to Portuguese, English to Spanish
sofa cama
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
tão confortável que parecia um sofá motorizado
Pesquisei e consegui confirmar a ideia:
http://dadsclassiccars.com/used-1967-oldsmobile-delta-88-for...
"The seats are as comfortable as your living room sofa. Driving down the highway feels like you're floating on a cloud"
Eu adaptaria um pouco a tradução:
... like a rolling couch
... tão confortável que parecia um sofá motorizado
Fica a sugestão adicional e o link - espero que seja útil ;)
Discussion
when it goes by a gas station.