diff --git a/src/DETHRACE/common/skidmark.c b/src/DETHRACE/common/skidmark.c
index 30196c0a..13d65aa1 100644
--- a/src/DETHRACE/common/skidmark.c
+++ b/src/DETHRACE/common/skidmark.c
@@ -263,14 +263,29 @@ void StretchMark(tSkid* pMark, br_vector3* pFrom, br_vector3* pTo, br_scalar pTe
     br_scalar len;
     br_model* model;
 
-    rows = (br_vector3*)&pMark->actor->t.t.mat;
-    BrVector3Sub(&temp, pTo, pFrom);
-    len = BrVector3Length(&temp);
+    on_ground = pCar->susp_height[pWheel_num >> 1] > pCar->oldd[pWheel_num];
+    if (!on_ground) {
+        pCar->special_start[pWheel_num].v[0] = FLT_MAX;
+    }
+}
 
-    if (len < BR_SCALAR_EPSILON) {
-        rows[2].v[0] = pMark->normal.v[2] * temp.v[1] - pMark->normal.v[1] * temp.v[2];
-        rows[2].v[1] = pMark->normal.v[0] * temp.v[2] - pMark->normal.v[2] * temp.v[0];
-        rows[2].v[2] = pMark->normal.v[1] * temp.v[0] - pMark->normal.v[0] * temp.v[1];
+// IDA: int __usercall FarFromLine2D@<EAX>(br_vector3 *pPt@<EAX>, br_vector3 *pL1@<EDX>, br_vector3 *pL2@<EBX>)
+// FUNCTION: CARM95 0x004020dc
+int FarFromLine2D(br_vector3* pPt, br_vector3* pL1, br_vector3* pL2) {
+    br_vector2 line;
+    br_vector2 to_pt;
+    br_scalar line_len;
+    br_scalar cross;
+
+    line.v[0] = BR_SUB(pL2->v[0], pL1->v[0]);
+    line.v[1] = BR_SUB(pL2->v[2], pL1->v[2]);
+    to_pt.v[0] = BR_SUB(pPt->v[0], pL2->v[0]);
+    to_pt.v[1] = BR_SUB(pPt->v[2], pL2->v[2]);
+
+    cross = (-line.v[0]) * to_pt.v[1] + to_pt.v[0] * line.v[1];
+    line_len = BrVector2Length(&line);
+    if (fabs(cross) > line_len * 0.05f) {
+        return 1;
     } else {
         rows[2].v[0] = pMark->normal.v[2] * temp.v[1] - pMark->normal.v[1] * temp.v[2];
         rows[2].v[1] = pMark->normal.v[0] * temp.v[2] - pMark->normal.v[2] * temp.v[0];