Slashing Prices Led Tesla to Soaring Deliveries

Still, rising competition and an uncertain economy threaten EV maker's quarter-on-quarter sales growth.

Tesla Sued for Pricey, Lengthy Repairs

Limits on repair locations and exclusive parts increase repair times and cost.

Tesla Loses $49.8 Million; Higher Costs Are Blamed

Kelley Blue Book Names 10 Best Green Cars of 2013