BUR #13565 has been rejected.
remove implication pickup_truck -> truck
remove implication fire_truck -> motor_vehicle
create implication pickup_truck -> motor_vehicle
create implication sports_utility_vehicle -> motor_vehicle
For the pickup truck, I think it should be implicated to motor vehicle instead of truck as most pickup trucks are usually smaller, less utilitarian and aim to be stylish than regular trucks, though Isuzu and Mitsubishi pickup trucks can have both tags staying as they are intended for utilitarian use.
Fire truck should have its implication to motor vehicle removed as it is already implicated to truck.
I admit, the SUV tag is a hard decision, several people consider it as a car, but there are also other people who disagree with it, so motor vehicle is the best tag for this.