Today on Ask.cars.com, find out what is the smallest luxury car offering produced by an American automaker. Over at MotherProof.com, check out our latest Feature of the Week post, which this time covers panoramic moonroofs. Finally, check out PickupTrucks.com to find out our dyno testing results of Ford’s factory update for the 6.7-liter diesel engine.

• What is the smallest American luxury car? (Ask.cars.com) 
• Feature of the Week: Panoramic Moonroofs (MotherProof.com) 
• Dyno Test: Ford 6.7-liter Power Stroke V-8 Diesel After Factory Power Update (PickupTrucks.com)