source: However travel through very remote areas, on isolated tracks, requires advance planning and a suitable, reliable vehicle (usually a four wheel drive).
target: However travel through very remote areas, on isolated tracks, requires advance planning and a suitable, reliable vehicle.
references: However travel through very remote areas, on isolated tracks, requires advance planning and a suitable, reliable vehicle. To travel in isolated areas, one needs to plan in advance and have a suitable and reliable vehicle. However travel through rural areas, on isolated tracks, requires early planning and a suitable, reliable vehicle (usually a four wheel drive). Traveling through far away areas requires advance planning and a suitable, reliable vehicle (usually a four wheel drive). Travel through distant areas requires advance planning and a suitable vehicle. Travel in remote isolated areas requires prior planning and a good vehicle. However travel through very remote areas, requires advance planning and a suitable, reliable vehicle (usually a four wheel drive). A reliable four wheel drive vehicle and careful planning  is needed to travel through remote areas or on tracks that are difficult to reach. Travel through unknown areas takes planning ahead and a good car usually four wheel drive. Travel through very remote areas requires advanced planning and a reliable vehicle.