maybe, but £1100 is plain silly for just a remap
i would say Revo but they cant be installed by yourself (that i know of)
I'd take REVO too, with that handheld toy you get to play with your settings.
Unfortunately, REVO is not represented in Switzerland.
1100 quid... I haven't regretted it yet!
THinking of coilovers, ARBs, and dogbone inserts. Don't ask me the price.

But that is the maximum I'd do on my E30.
To get a TBE from Oettinger (ABT does not offer any, like I said) would cost over 2000 quid.
Oettinger Stage 2 (intercooler, carbonio, exhaust from cat, and 330hp/460Nm) costs over 2500 quid. (at the current exchange rate).
And living in Switzerland does not automatically mean you are millionaire.