The Golf (if it's a 1.9 diesel) is also a damn sight uglier, dirtier and smellier.
That's not an insult but a truth.
Why, some old oil burners could probably run on chip fat too... Mmmm nice.
The point you miss here is that modern technology has allowed Ford and others to create very small capacity engines that, to date, are zero road fund rated, will never need a cambelt changed, are fantastically agile and fun to drive, are pretty quick by ANY standards and can STILL give almost diesel like economy, not forgetting petrol per litre is so much cheaper than devil oil too.
I chose the Black Edition.
I tried the ST today before I left for home in my new car, and the ST is a great car.
Particularly for the younger drivers I must say, more committed, harder ride, louder engine and exhaust note, more aggressive body kit and a very nice leather interior.
As for the remap query, the 140 BHP is gained from map tweaks, turbo waste gate changes, valve timing changes and the gear ratio alterations enable best use of those changes.
So I'd guess straight power output could be matched by a remap, but the beauty of the Black/Red Editions is the manner of the power delivery across the power band.
You'd have to uprate suspension and brakes too, maybe clocks as well. Then the interior is still 1.25.......
Plus unless it was done professionally it could be unreliable.
The resale value would be lower and your Insurance company would hate you... A modified car, from plodder to performance would give them nightmares...
Ok.. First be careful! If the seat doesn't have electric adjustment, or seat heating, then the wires could easily be the seatbelt pre-tensioners, essentially explosive devices! Disconnect your battery for 30 mins or so then disconnect the under-seat wiring at its plug connections, then undo the bolts securing the seat to the car floor. Once out of the car you will be able to investigate the reason for the jamming.