It isn't within 15% of Tesla in price. Not even close. BYD models start at like $10K, and the cheapest BYD Sedan is $15K. The cheapest Model 3 meanwhile will be around $35-40K depending on the inventory around you.

I just checked and if we're doing like for like the cheapest BYD Seal is $50k AUD (510km range, 0-100 in 7.5). The cheapest model 3 is $59k (520km range, 0-100 in 6.1). So I guess closer to 20%.

If you're comparing the Atto 1 it's $26k for 200 range, 0-100 in 11.1. Not really a fair comparison.