A vehicle (2) comprising a vehicle body (6) is disclosed. First struts (16) are mounted to the vehicle body for supporting transport wheels (12) for supporting the vehicle body in a first mode of operation of the vehicle, and second struts (26) are mounted to the vehicle body for supporting roller assemblies (14) for supporting the vehicle body and applying pressure to the ground to detonate explosive devices in a second mode of operation of the vehicle. The transport wheels engage the ground and the rollers are out of engagement with the ground in the first mode, and the rollers engage the ground and the transport wheels are out of engagement with the ground in the second mode. Rollers of one roller assembly partly protrude into gaps between rollers of the other roller assembly.