 Also beginning in 1999 the rear leaf springs were extended to allow for greater wheel travel (articulation) and increased ride comfort.Most 70 Series Land Cruisers (both petrol and diesel models) use inline six-cylinder engines.The exceptions are the V8 diesel 1VD-FTV engine introduced in some markets in 2007 and the V6 petrol 1GR-FE introduced in 2009, with the last straight-6 available being the diesel 1HZ for markets with less stringent emission rules such as Africa and Bolivia.