Is the Lotus Exige a good investment?

The thesis

The Exige Cup 430 is the fastest production Lotus Exige ever built: 430 hp supercharged 3.5L V6 (not naturally aspirated—fails user criteria), 6-speed manual only, 1,056 kg dry weight, 220 kg downforce, and unlimited production (not a numbered limited edition). Original UK price was £99,800. Used examples now trade £75,000–£110,000. It's the ultimate analogue Exige before electrification but does not meet the naturally aspirated requirement. Included to illustrate the tension between 'last of breed' purity and forced induction.