The best time to buy a new or used car or truck is the last weekend of any month, and Monday night if it happens to fall at the very end of the month. 1) The Weekend Including Monday Nights: What do weekends and Monday nights have to do with anything? Plenty! They are always the busiest times of the week in a car dealership. Very often sales promotions are targeted for weekends and the following Monday. Most dealerships are open late on Monday night, and weekends and Monday nights are usually very busy. The sales manager and the salespeople are all psyched up to make the most of the traffic. They often discuss strategy before hand. Often the sales manager will offer extra bonuses to the sales force on weekends and during these end of month promotions. Sometimes the salesperson who makes the first deal of the day will get an extra $100 or $200 cash in hand! Oftentimes, the salesperson who sells the most vehicles during a weekend will get an added bonus of $200 to $1,000! Beware here. Fr