Tesla unveils long-awaited cheaper Model Y, Model 3 in drive to reignite sales — here's what they cost

1. Tesla launched affordable Model Y and Model 3 to boost sales. 2. Shares dropped 4% despite low-priced launch. 3. Standard versions lack features of higher trims, raising cannibalization concerns. 4. Affordable cars are crucial for Tesla’s growth targets and Musk's pay plan. 5. Increased competition, especially in China and Europe, poses challenges.