Translation:The Swedish car industry has been strong.
RIP Saab :(
Är det bara Volvo och Saab eller mer?
Koenigsegg
Scania?
Isn't volvo chinese now?
...and SAAB isn't in business at all. This explains why the DuoLingo statement is in the pluperfect tense.
except it isn't, that would be "hade varit" :-)
