S3 Trinic Sportback or keep my Scoob?

So....I've had a Bugeye WRX(2001) for 7 years and it's been my baby...never let me down, ever!...but after taking her from 70k up to 155k the time had come for a new car as little bits were starting to add up.
My mate got a really good deal on a new S3 STronic for £380 a month over 4 years including the Super Sports Seats. I was about to order one and then chickened out and went and bought another Subaru. But, in in the first 2 weeks, I had a little trouble with it. Had to take it back to the small dealer ,under warranty, and, to be fair, he sorted most of the niggles. Looking back now (only two months) the things weren't that bad, split top hose that looked worse than it was because of the steam, little niggles like corrosion on brakes and needed belts doing. (I'd had it inspected by an independent subaru specialist after a few days of buying it)...selector spring in the gearbox so it doesn't spring to the middle in neutral but doesn't effect driving in any way. The worse thing is the gearbox leak that is still there but slight. I know I can keep on top of that.

Anyways, in the 2 weeks whilst having niggles and then having no car whilst the dealer sorted things, I couldn't be bothered with the stress and moaning from the missus...and the gloating mate....so I ordered the S3!

In the meantime though, driving the Subaru,I love the Scoob. When I drive it 'quickly', it puts a grin on my face and it holds all of my equipment for work and also works as a small family saloon. It's running sweet and has a full year MOT with no advisories.(The gearbox leak isn't bad enough to be on advisory sheet) It's definitely faster than my Bugeye, which had 240bhp/238lb.

My mate just says Subarus are old and rubbish and that I would be mad not to taste the audi STronic life at least once and that I might not get this kinda deal again if I turn it down now.

I've been eargely awaiting it and I am very excited about it. But should I just cancel it, lose my £500 deposit and keep the £4500 Subaru?

Are there any issues with the new audi s3? (The Golf R shares the engine and I've heard of issues?)
Will I like the STronic box for a month and then be depressed when I can't change gear manually?
Will I regret paying so much a month(I can afford it) even through it is a good deal?
Any Subaru owners who've moved the audi or fast auto?

What should I do?

I just went out for a 'spirited run' in Wales with a Golf R and a TVR & me in the Scooby and I had an amazing time and they couldn't shake me off.

Is the new S3 really worth my £386 a month and 1k down?

Sorry I spelt Tronic wrong

Anyone?

Thanks for the replies guys.

Looking around on the net, I'm not actually sure if I can cancel it now because it is already built?

Thanks guys,

Yeah, AndyB, I test drove the new STi and it was a dealer tunes one putting out 340bhp. Thing was, they couldn't go lower than £390 with 1k down...and my mate already had the £386 on the s3. The Scoob just felt similar to my Blobeye so didn't seem much point spending on a new scoob. The S3 is in a different league with its interior, for £4 less!
I'm gonna ring the dealer now.

Thanks for all your help guys. I rang the dealer and canceled. They were quite shocked but were quite ok about it. Not sure if I will get my deposit back but I'm happy to be sticking with my Subaru.
Thanks for all of the help and advice.