diff --git a/assets.h b/assets.h
index 65c6a97..23f32c7 100644
--- a/assets.h
+++ b/assets.h
@@ -352,7 +352,7 @@ static const char *LCR_internalDataFile =
 
   // MAP 5:
   "#MLC5;4321 0"
-  ":*IawJ"
+  ":*I8wJ"
   ":vq1t1J:m111:vs1r1J:m111"
   ":vI4g3J:AI3g1L:AI2g1L:m131"
   ":vN4g3J:AN3g1L:AN2g1L:m131"
@@ -411,26 +411,26 @@ static const char *LCR_internalDataFile =
   ":^F4DL:f115:^F3DJ-:f115"
   ":'G3DL:f115:<G2DJ-:f115"
   ":<H3DL:f115:=H1D:f125"
-  ":Iu0D1 :f161 :Iu0H1J :f161 :IB0D1| :f161 :IB0H1L :f161" // pillars
-  ":<A1kJ :f115 :'B1kJ :f115 :<C2kJ :f115 :'D2kJ :f115"    // big ramp right
-  ":<51l2 :f511 :'51m2 :f511 :<52n2 :f511 :'52o2 :f511"    // big ramp left
-  ":+K7w :+y1O :+k3s :+g1b :+c3B :!93E :!K3h"
+  ":Iu0D1:f161:Iu0H1J:f161:IB0D1|:f161:IB0H1L:f161"  // pillars
+  ":<A1kJ:f115:'B1kJ:f115:<C2kJ:f115:'D2kJ:f115"     // big ramp right
+  ":<51l2:f511:'51m2:f511:<52n2:f511:'52o2:f511"     // big ramp left
+  ":+K7w:+y1O:+k3s:+g1b:+c3B:!93E:!K3h"
   // house:
-  ":;j3w2 :f127 :;n3w2| :f127"
-  ":-j5w :f517"
-  ":,j4x- :f112 :,j4A- :f112"
-  ":,n4x|- :f112 :,n4A|- :f112"
-  ":'j5w2L :f117 :'n5w2J :f117"
+  ":;j3w2:f127:;n3w2|:f127"
+  ":-j5w:f517"
+  ":,j4x-:f112:,j4A-:f112"
+  ":,n4x|-:f112:,n4A|-:f112"
+  ":'j5w2L:f117:'n5w2J:f117"
   // details:
-  ":)p1KL :f113 :)G1KJ :f113"                // ramps
-  ":|u1A2 :f811 :|u7DI :f811 :|u7H :f811"    // small walls
-  ":(c3pI :|c3o- :(g3pI :|g3o-"              // shafts
-  ":;c3tJ :f511"                             // small wall
-  ":~n1g1 :~o1f2 :~p1e2 :~q1d1"
-  ":nw4n2L :Iw3n :m121"                      // column
-  ":'w0sJ :m111 :'C0sJ :m111 :}z0s2J| :m111" // pits
-  ":=c2q3 :f513"                             // ice
-  ":;g082L :f151 :;g0e2J :f151 :-g58 :f117 :~g493- :~g4d3-" // gate
+  ":)p1KL:f113:)G1KJ:f113"                           // ramps
+  ":|u1A2:f811:|u7DI:f811:|u7H:f811"                 // small walls
+  ":(c3pI:|c3o-:(g3pI:|g3o-"                         // shafts
+  ":;c3tJ:f511"                                      // small wall
+  ":~n1g1:~o1f2:~p1e2:~q1d1"
+  ":nw4n2L:Iw3n:m121"                                // column
+  ":'w0sJ:m111:'C0sJ:m111:}z0s2J|:m111"              // pits
+  ":=c2q3:f513"                                      // ice
+  ":;g082L:f151:;g0e2J:f151:-g58:f117:~g493-:~g4d3-" // gate
 
 #endif // !LCR_SETTING_ONLY_SMALL_MAPS
 
@@ -455,8 +455,8 @@ static const char *LCR_internalDataFile =
   ":^o4w:fj11:^o3w-I:fj11"
   ":^n5x:fj11:^n4x-I:fj11"
   ":^m6y:fj11:^m5y-I:fj11"
-  ":^l7z :fj11 :^l6z-I :fj11"
-  ":^k8A :fj11 :^k7A-I :fj11"
+  ":^l7z:fj11:^l6z-I:fj11"
+  ":^k8A:fj11:^k7A-I:fj11"
   ":=k8B:f419:=o8F:f415:^k9K2I:f611:^k8K2I-:f611" // top
   ":=y0F1:fb15:^y0F1:fb11:^y0J1I:fb11"            // end
 
diff --git a/data b/data
index 79f3105..cbc6e4b 100644
--- a/data
+++ b/data
@@ -131,8 +131,3 @@ details
 :]h0gI :}g0gI :|g1gI :f211 :|g3gI- :f211 :]g4gI- :f211 :;g0fJ :f251
 :-e5g :f413 :|g0hL
 :+018 :f213 :!v05 :f311
-#RLC1;00LC1;8bd6e314 0000457:0011:0169:0051:0109:0061:0029:0051:0059:0041:0039:0021:0039:0031:0029:0031:0059:0021:0039:0031:00a9:0031:0029:0085:0041:00d9:00f1:0059:0041:0119:0031:0039:0041:0089:0021:0079:0031:00e9:0021:00c9:0021:00d5:0041:0293:0141:0013:0071:0113:0031:0113:0041
-#RLC2;00LC2;3c5ba5dd 0000792:0001:00a3:0061:01b9:0061:0105:0041:01f9:0031:0049:0041:0059:0041:0029:0061:00d3:0061:00b3:0091:0093:0061:0043:0021:0083:00c1:0483:0021:00a9:0031:00e5:0031:0083:0051:0023:0071:0063:00b1:0053:0031:0143:0051:0133:0021:00a9:0081:00a9:0041:0083:0061:01e3:0101:0053:0011:0073:0011:0099:0061:0093:0031:0173:00a2:0016:0202:003c:0070:0042:0033:0121:0059:0071:0033:0181:0039:0071:0073:0051:0113:0021:0179:0031:0093:0031:0069:0031:00e9:0021
-#RLC3;00LC3;cb1b38e6 0000482:0011:02a5:0024:0135:0051:0153:0051:0043:00b1:0063:0031:0243:0041:0083:0061:0179:0141:0143:0031:0083:0031:00d3:0061:0073:0011:0063:00a1:01b3:0091:0093:00d1:0049:0058:0099:0061:0183:0061:00c9:0041:0105:0041:0199:0031:0089:0011
-#RLCtiny4;00LCtiny4;f999f0ec 0000216:0013:01d1:0059:0041:0093:0041:0069:0241:0085:0041:0179:0041:01a3:0031
-#RLCtiny1;00LCtiny1;ae1ab677 0000311:0011:00a3:0041:0209:0031:0049:0041:01e9:0081:0015:0031:0029:0041:0193:0031:00b3:0041:0053:0021:0053:00b7:0025:0021:00d3:0121:00c3:0031:00b5:0031:01e9:0021:00b9:0031
diff --git a/racing.h b/racing.h
index c624b83..cd9ba74 100644
--- a/racing.h
+++ b/racing.h
@@ -1285,18 +1285,24 @@ uint32_t LCR_racingStep(unsigned int input)
     {
       LCR_LOG2("air brake");
 
-      for (int i = 0; i < LCR_CAR_JOINTS - 1; ++i)
-        for (int j = 0; j < 3; ++j)
-          LCR_racing.carBody.joints[i].velocity[j] =  
-            LCR_racing.carBody.joints[LCR_CAR_JOINTS - 1].velocity[j]; 
+      LCR_racing.carBody.jointCount--; // exclude roof (may be unsqueezing)
+      TPE_Vec3 linVel = TPE_bodyGetLinearVelocity(&LCR_racing.carBody);
+      LCR_racing.carBody.jointCount++;
+       
+      for (int i = 0; i < LCR_CAR_JOINTS - 1; ++i) // exclude roof again
+      {
+        LCR_racing.carBody.joints[i].velocity[0] = linVel.x; 
+        LCR_racing.carBody.joints[i].velocity[1] = linVel.y; 
+        LCR_racing.carBody.joints[i].velocity[2] = linVel.z; 
+      }
 
       // gradual slowing down mid-air:
 
       LCR_racing.carBody.joints[4].velocity[0] = 
-        15 * (LCR_racing.carBody.joints[4].velocity[0] / 16);
+        15 * (LCR_racing.carBody.joints[LCR_CAR_JOINTS - 1].velocity[0] / 16);
 
       LCR_racing.carBody.joints[4].velocity[2] = 
-        15 * (LCR_racing.carBody.joints[4].velocity[2] / 16);
+        15 * (LCR_racing.carBody.joints[LCR_CAR_JOINTS - 1].velocity[2] / 16);
     }
 
     if (input & (LCR_RACING_INPUT_FORW | LCR_RACING_INPUT_BACK))