40
car subwoofer
Skip itWeak search conversion (0.3%) — this niche doesn't clear our bar today.
Review moat
Great304.53avg incumbent reviews — the moat a new listing must climb
Avg price
Great£97.25avg listing price — sweet spot $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Price range
Okay£22.03–£198.45cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Returns
Bad5.3%return rate — above 5% kills the launch gate
Growth
Bad-4.5%90-day search growth — must beat 0% to launch
Market size
Bad£63K£63K/yr · 241K searches
Conversion
Bad0.3%search→purchase rate — share of searches ending in a sale