Historically, the jump from 2 kids to 3 kids requires purchasing a new car. The new car is more expensive to buy, operate, and maintain.
Today there are many narrow car seat options on the market, so 3 across seating is possible in full size sedans, but not compact cars. A European company makes a 3-across and 4-across car seat, but it's illegal in the US by accident.
Today there are many narrow car seat options on the market, so 3 across seating is possible in full size sedans, but not compact cars. A European company makes a 3-across and 4-across car seat, but it's illegal in the US by accident.