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Easily achievable out of the box?
Alfa 147 3.2 V6
You’ve also got the Mk4 Golf with the 2.3 V5, 2.8 or 3.2 sixes, or the Mk5 Golf R32 with the same 3.2 VR6. The Audi A3 also featured the 3.2, and later S/RS A3’s had a 2.5 5 cyl. The Mk2 Ford Focus and Volvo C30 had a 2.5 5 cyl, as did the Mazda 3.
Early BMW 125i/128i/130i/135i all had a 3.0 six, as did the (very pricey) 1M Coupe.
For a few more £££‘S BMW F20 generation 1 series M135i/M140i have a 3.0 straight 6 turbo with between 320 & 340hp. The B58 in the M140i is easily and cheaply tuneable to 420bhp, and far beyond (engine is the same as in the latest M340 and Supra) with a little more work.So a wealth of small car/big engine options from £1000-£25,000+
Ok, a thought- I tend towards barges because I like big engines (and I cannot lie), but- maybe they come in smaller cars as well?
What’s the biggest engine/smallest car ratio achievable?