English Motors, Ltd$.($EML$)$ developed a new all$-$wheel$-$drive sports utility vehicle. As part of the marketing campaign, EML produced a video presentation to send to both owners of current EML four$-$wheel$-$drive vehicles as well as to owners of four$-$wheel$-$drive sports utility vehicles offered by competitors; EML refers to these two target markets as the current customer market and the new customer market. Individuals who receive the new promotion video will also receive a coupon for a test drive of the new EML model for one weekend. A key factor in the success of the new promotion is the response rate, the percentage of individuals who receive the new promotion and for the current customer market and $20\%$ for the new customer market. The cost for each promotion, excluding the test drive costs, is $$4$ for each promotion sent to the must be at least twice the number of new customers who test drive the new vehicle. If the marke$$ing budget, excluding test drive costs, is $$1\mathrm{.}2$ mililion, how many customers.$)$