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obd1 to obd2 adapter
Skip itSoft demand (-4.2% this quarter) — this niche doesn't clear our bar today.
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Avg price
Great$54.98avg listing price — sweet spot $15–$100
Market size
Good$353K$353K/yr · 238K searches
Conversion
Okay2.7%search→purchase rate — share of searches ending in a sale
Returns
Okay4.3%return rate — above 5% kills the launch gate
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Price range
Okay$6.13–$289.85cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Review moat
Bad4,469avg incumbent reviews — the moat a new listing must climb
Growth
Bad-4.2%90-day search growth — must beat 0% to launch