Mat Watson Cars

I Put £20,000 Of Parts On Japan's Smallest Sports Car

30 August 2026 29:12 1.29M views 0 logs

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There's over £20,000 of parts and labour in this £11,000 Honda S660 — double what the car is worth. Full HKS turbo conversion, full Spoon Sports chassis package, and a dyno to find out what it was all for.

Check any car's history before you buy with carVertical: https://www.carvertical.com/gb/landing/v3?a=watson&b=38b26e3a&voucher=watson&utm_medium=infl — use code WATSON for 20% off.

The S660 is Honda's mid-engined kei sports car: 660cc, turbocharged from the factory, and claimed at 63hp because kei cars were capped there by agreement between the manufacturers. Except when we put mine on ...