I can't speak from experience, but the best thing I did on my BMW Active Tourer (screen wise) was to buy a Linux screen off aliexpress and replace the standard unit.
Perhaps you can look into those options?
IMO: if you really want to keep the VQ, supercharge it.
Otherwise, VR38DETT/VR30DETT conversion, or sell for a better base car.
Or go wild with a V8 turbo conversion, or a Hartley V12...
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