Oh, in that case, 999kg.
Without the old geezers in obvs. And maybe after its had a chance to do the Mini thing and rust away some of its excess weight.
Iron oxide is heavier than iron due to absorbing oxygen molecules. it's only when bits fall off it'll get lighter.
anyway i'll go for 890kgs.
plus i'll wager it won't be long before the engine comes back out to get rid of the paddle clutch. Having driven quite a few cars with these clutches i'll say they are bl**dy horrible. If your extremely gentle with the revs you may just be able to pull away sensibly but try a little harder and they judder like mad or just snatch. Not ideal on a road car.
Realised I haven't said a weight and was going to go with 1kg for every cc of the original (assuming a "Special") engine = 1098 but @bmwmaniac has beat me to it
So I go for 1275kg* and assume the Alpine kit weighs a fair bit
*Edit: Hmmm that's a bit close to @Alfreds guess - Right!, split the difference 1186.5kg
-- Edited by Forsh on Wednesday 28th of July 2021 05:09:17 PM
I've updated my previous post to show the percentage of the 620Kgs implied by everyone's guesses. Made me think that maybe I've gone too high.
Maybe I should show the percentage lighter than a Celica?
Just shows how skewed our perspective has become with the 1 3/4 tonne behemoth family hatchbacks we now run around in - as for EV SUV's !!!, I'm surprised motorway bridges and the like can cope! No wonder there are so may "sink holes*" appearing! (a sink hole is a collapsed sewer for people of a certain age! - sink hole my arse! - fakin journalistic click bait! )
The Gordon Murray philosophy of make every little thing a little bit lighter makes sooooo much sense!