The word driver is more general - anybody who drives a vehicle is a driver. You are a driver when you are driving your car. Some people work as bus drivers and taxi drivers (the drivers of trains are usually called conductors).
A chauffeur is a person who is employed to drive a car for a private individual. Rich people and celebrities often have chauffeurs so that they do not have to take public transportation, or drive themselves.
All chauffeurs are also drivers; not all drivers are chauffeurs.
The summer squashes include yellow squash, yellow crookneck, and pattypan, as well as zucchini, which is so numerous it gets its own entry! Tender, yellow summer squash provides vitamins A and C; the B vitamins B6, riboflavin, niacin, and folate; and the minerals potassium and magnesium. They are a good source of fiber and, at 93 percent water, low in calories and helpful for staying hydrated in the summer heat. They also provide lutein and zeaxanthin, two carotenoids that help preserve vision.Nutritional Facts
One cup of sliced raw summer squash provides 12 calories, 5.2 g carbohydrate, 1.2 g protein, 0.4 g fat, 2.4 g dietary fiber, 440 IU vitamin A, 10 mg vitamin C, 30 mcg folic acid, 276 mg potassium, 2 mg sodium, 42 mg phosphorus, 28 mg calcium, and 28 mg magnesium.