Elon Musk says Model 3 assembly will 'definitely' start next month

Elon Musk is setting some tight deadlines for Tesla again. The brash tech tycoon said the electric-car maker -- which has famously blown the ambitious production deadlines it sets -- was "definitely" on track to start building its mass-market Model 3 next month. What's more, Musk told shareholders at Tesla's annual meeting late Tuesday that...