Off-road vehicle

1. An off-road vehicle, comprising:

an engine body having a cylinder and a crankshaft, a center axis of the crankshaft extending in a vehicle width direction;

a transmission disposed adjacent to the engine body in a direction orthogonal to the center axis of the crankshaft;

a cargo bed disposed above the engine body;

a vehicle body frame; and

a dump actuator,

wherein:

the cylinder has a center axis which: (i) is inclined to a first side which is opposite to a second side on which the transmission is disposed; or (ii) extends horizontally to the first side;

the engine body is an in-line engine;

the engine body and the cargo bed are at least partially overlapping in a vehicle top view;

the cargo bed is pivotally supported to the vehicle body frame so as to be movable between a normal position on the vehicle body frame and a raised dumping position;

the dump actuator is configured to move the cargo bed to the raised dumping position or assist movement of the cargo bed to the raised dumping position;

the dump actuator is disposed below the cargo bed and immediately above a crankcase; and

the cargo bed has a bottom plate which extends forward from a rear end of the cargo bed at a height position corresponding to a cylinder head to reach above the crankcase, the bottom plate including a front end portion located one step higher than the cylinder head.

2. The off-road vehicle according to claim 1 , wherein:

the engine body has the cylinder head in which an exhaust port and an intake port are defined;

the cylinder head includes a first side surface positioned on a first side in a direction orthogonal to the center axis of the crankshaft and the center axis of the cylinder and the intake port is configured to be open, and a second side surface positioned on a second side and the exhaust port is configured to be open; and

the second side surface is positioned below the first side surface.

3. The off-road vehicle according to claim 1 , wherein

the engine body is a multi-cylinder engine.

4. The off-road vehicle according to claim 1 , wherein

the center axis of the cylinder extends in the first side crossing at an angle of 90 degrees with respect to the vertical direction.

5. The off-road vehicle according to claim 1 , further comprising:

a rear wheel configured to be rotationally driven by rotation torque output from the transmission,

wherein:

a center axis of the rear wheel is positioned on a rear side relative to the center axis of the crankshaft;

the transmission is disposed on a rear side of the engine body; and

the cylinder extends forward with respect to the crankshaft.

6. The off-road vehicle according to claim 1 , wherein

the transmission is a gear-meshing transmission.

7. The off-road vehicle according to claim 1 , further comprising:

a vehicle body floor constituting a bottom portion in a riding space for an occupant to ride in,

wherein the engine body is positioned above the vehicle body floor.

8. A vehicle, comprising:

a cargo bed;

an engine body disposed below the cargo bed and having a cylinder and a crankshaft, a center axis of the crankshaft extending in a vehicle width direction;

a transmission disposed adjacent to the engine body in a direction orthogonal to the center axis of the crankshaft;

a vehicle body frame; and

a dump actuator,

wherein:

the cylinder has a center axis which: (i) is inclined to a first side which is opposite to a second side on which the transmission is disposed; or (ii) extends horizontally to the first side;

the engine body is an in-line engine;

the cargo bed is pivotally supported to the vehicle body frame so as to be movable between a normal position on the vehicle body frame and a raised dumping position;

the dump actuator is configured to move the cargo bed to the raised dumping position or assist movement of the cargo bed to the raised dumping position;

the dump actuator is disposed below the cargo bed and immediately above a crankcase; and

the cargo bed has a bottom plate which extends forward from a rear end of the cargo bed at a height position corresponding to a cylinder head to reach above the crankcase, the bottom plate including a front end portion located one step higher than the cylinder head.

9. The off-road vehicle according to claim 1 , wherein:

the cylinder head includes a first side surface at which an inlet port is open; and

the first side surface of the cylinder head is positioned on a side adjacent to the dump actuator.