My truck has 2 full-size seats in the front and 2 mini-seats in the back of the cab that are accessed via mini-doors.
GAS -- It has a 21 gallon tank. So 1/4 tank = about 5 gallons. If you return it with more gas then when you started, let me know how much more and I will Paypal you a fair amount. If you bring it back with less than when you started, either leave me some cash in the lockbox or Paypal me a fair amount.
CLEANLINESS -- The truck is parked outside. May have standard dirt and bird droppings on it. No need to wash it unless you get it really dirty for some reason.
CARSEATS -- The truck has 2 booster seats in the Access Cab. The one on the driver side is easy to remove. The one on the passenger side takes about 5 minutes to remove. If you want to take them out, just put them behind the fence.
TOWING -- It has a 2" trailer hitch receiver and a plug for lights. You are on your own here. The truck is a 4-cylinder so I would not recommend towing anything heavy or uphill, but I would think a small utility trailer or light boat would likely be ok.
BIKES - Has hardware to mount 2 bikes in bed.