The episode reveals the aftermath in a brief gag. After the car finally dies, Kramer is seen nonchalantly filling a gas can at a station. He returns to the dealership with the salesman (who appears physically exhausted and traumatized by the experience).
While Jerry Seinfeld attempts to buy a new car through his "dealer friend" (Puddy) to secure a "sweet" deal, Kramer visits a dealership purely out of curiosity. He zeroes in on a 1995 Volvo 960. However, rather than inspecting the engine or the upholstery, Kramer becomes fixated on a single metric: the size of the gas tank. He is skeptical of the listed specifications and determines that the only way to verify the tank's true capacity is to drive the car until it runs out of gas. seinfeld kramer test drive