A front steering assembly (1000; 1100; 1200; 1300) for use with a vehicle having a vehicle subframe and an electronic drive control system, the front steering assembly comprising: a frame member (1022; 1122; 1222; 1322), non-integral with the vehicle subframe, and having opposed ends; a mounting member (1023L, 1023R; 1123L, 1123R; 1223L, 1223R; 1323L, 1323R) located on the frame member, wherein the mounting member is adapted for attachment to the vehicle subframe; a first wheel assembly (1024L; 1124L; 1224L; 1324L) attached to a first end of the frame member and pivotable about a first vertical steering axis and a second wheel assembly (1024R; 1124R; 1224R; 1324R) attached to a second end of the frame member and pivotable about a second vertical steering axis; a steering mechanism (1041; 1141; 1241; 1341) operatively connected to the first and second wheel assemblies, the steering mechanism comprising a steering column (1046; 1146; 1246; 1346) directly connected to the frame member and a steering input device, wherein the steering mechanism induces a progressive Ackerman effect in the first and second wheel assemblies as the steering input device is moved away from a center position; a steering position sensor (1048; 1148; 1248; 1348) mounted to the steering mechanism for sensing movement of the steering mechanism and capable of being communicatively connected with the electronic drive control system of the vehicle, wherein the steering position sensor emits a signal proportional to the movement of the steering mechanism; and a wiring harness (1019; 1119; 1219; 1319) connected to and extending from the steering position sensor, the wiring harness having a connector (1019a; 1119a; 1219a; 1319a) for connecting to the electronic drive control system of the vehicle; wherein the front steering assembly (1000; 1100; 1200; 1300) as a whole is modular and adapted for attachment to the vehicle subframe and the electronic drive control system such that the vehicle is capable of zero-radius turn operation or near zero-radius turn operation. a frame member (1022; 1122; 1222; 1322), non-integral with the vehicle subframe, and having opposed ends; a mounting member (1023L, 1023R; 1123L, 1123R; 1223L, 1223R; 1323L, 1323R) located on the frame member, wherein the mounting member is adapted for attachment to the vehicle subframe; a first wheel assembly (1024L; 1124L; 1224L; 1324L) attached to a first end of the frame member and pivotable about a first vertical steering axis and a second wheel assembly (1024R; 1124R; 1224R; 1324R) attached to a second end of the frame member and pivotable about a second vertical steering axis; a steering mechanism (1041; 1141; 1241; 1341) operatively connected to the first and second wheel assemblies, the steering mechanism comprising a steering column (1046; 1146; 1246; 1346) directly connected to the frame member and a steering input device, wherein the steering mechanism induces a progressive Ackerman effect in the first and second wheel assemblies as the steering input device is moved away from a center position; a steering position sensor (1048; 1148; 1248; 1348) mounted to the steering mechanism for sensing movement of the steering mechanism and capable of being communicatively connected with the electronic drive control system of the vehicle, wherein the steering position sensor emits a signal proportional to the movement of the steering mechanism; and a wiring harness (1019; 1119; 1219; 1319) connected to and extending from the steering position sensor, the wiring harness having a connector (1019a; 1119a; 1219a; 1319a) for connecting to the electronic drive control system of the vehicle; wherein the front steering assembly (1000; 1100; 1200; 1300) as a whole is modular and adapted for attachment to the vehicle subframe and the electronic drive control system such that the vehicle is capable of zero-radius turn operation or near zero-radius turn operation.