Lucid Motors is offering a discount of up to $4,000 for Tesla owners who want to trade in their cars for a Lucid Air EV.The $4,000 discount is split into $2,000 off the price of an in-stock Lucid Air and $2,000 off for trading in a Tesla.Proof of ownership is required to avail of the discount, and it is valid for both electric and gas-powered or hybrid models from legacy automakers.Lucid's offer is similar to what Polestar did with a $5,000 discount for Tesla drivers last month, resulting in high order days for the Polestar 3.