Japan does drive on the left, so yes it’s possible it was imported from there.
As to souping up a Civic - sadly, it’s something not uncommon here. Along with the low-slung double-exhaust thumping-stereo Citroen Saxo, which really amuses me.
Honda Civics are the ultimate lad cars here in Ireland. The type of cars young lads soup up and drive noisily revving round the town, stereo up to ninety.
And there are plenty of Japanese imports around here in general as they drive on the left as well. Mainly because the mileage tends to be lower on used cars and the spec is better sometimes too. Mine is a very girlie and quiet little Suzuki “Cultus” (The Japanese name for a Swift).