Autos are types of tracks in which a player passively moves along the track without having to press any keys, besides pressing a key once to start. Autos often include fast and sporadic motion and seemingly impossible movements. Powerups are more prominent in autos too. Many players enjoy autos because they are generally non competitive compared to normal tracks and they can watch the biker do different and interesting maneuvers.
An example of an auto (you can use this code in the track editor):
-t 3 -p 27,39 6a 39 6i,5d 7d 56 7v,2a cd 2s ci,45 f2 47 es,4f f6 4l ev,70 gp 70 gu,69 l5 7o ki,5h m6 5s m5,62 r3 7r r5,96 rk 9f rj,a5 s3 ag s1,bn s5 bh se,du u9 dt vt,ee 114 ep 112,fq 142 fu 143 g7 145 gg 146 gp 146 h2 145 hc 144 hl 143 hv 140 i4 13v,60 19c 54 1ae,55 1ae 69 1b2,e0 1ag ee 19o,cl 1bl d4 1bi,bp 1c0 c4 1bk,9u 1ck a7 1ck,9p 1f3 9s 1f5 9v 1f7 a2 1f7 a4 1f7 a7 1f6 ab 1f4 ad 1f2,8a 1ev 8b 1es 8d 1em 8e 1ej,9v 1p9 am 1qb,an 1qa ap 1p6,ne 25a n2 263,lp 292 nk 291,pq 29n pq 2ag,q2 2cu pr 2fa,nq 2lc nt 2lh o4 2lo o9 2ls oc 2lu of 2lv oi 2m0 ol 2m0 oo 2lv or 2lu ou 2ls p2 2lo p7 2lh pa 2lc,km 2kf kb 2ke,ii 2os ia 2ph,ii 2os is 2oq,gg 2qh fa 2rd,fc 2rd f7 2r2,eo 2r4 er 2rh,eb 2r9 ef 2rk,ds 2rf e1 2rt,dh 2rp dn 2s8,d3 2s5 d9 2sk,cv 2sl d9 2td,co 2t8 cu 2u2,ca 2tg ck 2un,bv 2u9 c5 2ve,bc 2us be 308,aq 2va ak 313,ab 2vi aa 30p,9h 2vs 95 32e,8o 305 8a 331,7o 309 73 33i,-7i 3i8 -6v 3i9,-9b 3j3 -8n 3j5,-94 3ja -92 3iu,-93 3iu -9c 3io,-92 3it -8t 3ip,-9b 3j1 -9c 3in,-8m 3j5 -8u 3ip,-93 3j8 -8p 3j4,-95 3j8 -9d 3j3##B bp se 0,B ep 141 73,G 4q 1bf 1a,G bg 19m 5k,B 99 1gl 5h,B ek 2rp 0,B e1 2s8 0,B da 2so 0,B d0 2tn 0,B cd 2uc 0,B bn 2v7 0,B b4 2vm 0,B af 302 0,B 9u 309 0,B 94 30k 0,B 89 30p 0,B 78 30u 0,B 3i 341 3v,B 74 35b 6l,B 3k 347 3m,B 3g 343 3m,B 73 35c 78,B 7a 35c 7h,B 3e 34s 3s,B 3r 358 3o,B 3k 34s 41,B 33 351 3s,B 3o 35t 44,B 39 35q 41,B 3g 36f 3i,B 3e 36c 3t,B 39 36h 41,B 6v 34g 72,B 77 357 7s,B 6p 352 7k,B 78 35g 7l,B 7d 35v 7o,B 7p 36c 7m,B 7a 36j 7m,B 71 36k 7m,B 6l 373 6l,B 70 37a 7k,B 70 380 75,B 7j 37h 7b,B 7g 371 77,B 33 373 3j,B 2q 375 3s,B 31 37a 3v,B 3c 36s 3s,B 2r 37a 49,B 2q 37u 3j,B 36 37k 3q,B 2r 381 3r,B 2h 38h 39,B 2c 38r 3k,B 2n 38v 3j,B 2e 39e 38,B 2l 39k 39,B 2s 39p 3a,B 2s 3a5 3h,B 2p 3ae 3a,B 2s 3ag 3k,B 2g 3at 3j,B 2n 3b6 37,B 2n 3bj 3e,B 31 3bu 3c,B 3g 3c2 37,B 3d 3c4 3q,B 34 3ce 3d,B 3m 3ck 3t,B 3p 3d3 3h,B 3o 3d6 3a,B 78 38d 7t,B 7e 38k 7o,B 7c 390 83,B 77 39d 82,B 7a 39p 7v,B 7e 3ab 7q,B 78 39v 7h,B 7d 39a 7n,B 34 3bq 3q,B 3g 3c8 3c,B 36 3cv 39,B 75 3aq 7t,B 76 3b6 85,B 7b 3bo 82,B 73 3c3 7g,B 72 3cl 7c,B 74 3d5 78,B 7k 3dg 7f,B 6u 3cs 6v,B 80 3d4 7k,B 7b 3dc 7d,B 7s 3dm 7h,B 81 3e6 7p,B 8l 3e2 7f,B 8g 3ef 7j,B 8i 3eo 80,B 8j 3e7 7i,B 8s 3ea 80,B 7a 3b1 7p,B 4d 3gk 0,B 4d 3gk 0,B 4d 3gl 0,B 4v 3gl 0,B 4u 3gl 0,B 4u 3gl 0,B 5r 3gk 0,B 5r 3gk 0,B 6q 3gi 0,B 6p 3gh 0,B 7t 3gf 0,B 8q 3g2 5k,B 8q 3g3 0,B 8q 3g3 0,B 8q 3g3 0,B 8q 3g3 0,B 1t 3ha 0,B -9 3hg 0,B -26 3hf 0,C fu 2qk,B 7u 3ej 7u,B 88 3ek 8b,B 7u 3eb 84,B 8j 3eo 7v,B 83 3el 8a,B 8e 3eu 7v,B 33 3h9 0,B 1b 3hb 0,B 1b 3hb 0,B 1b 3hb 0,B 1c 3hb 0,B -1a 3hh 0,B -19 3hh 2q,B -19 3hh 0,B -19 3hh 0,B f 3h9 0,B f 3h9 0,B g 3h9 5k,B g 3ha 0,B 1g 3dj 57,B 1r 3e0 5m,B e 3du 6i,B p 3dm 5l,B -k 3e4 5a,B -3 3dt 69,B -1g 3e6 62,B -2k 3e0 5k,B -1s 3e0 5v,B -3e 3e6 5k,B -2u 3hk 0,B -3g 3hj 0,B 29 3h8 -13,B q 3du 6p,B b 3h5 -1c,B -1e 3ec 6m,B -2j 3hc -9,B -44 3hq -14,B -4v 3ht r,B -46 3du 6v,B -54 3di 4f,G -aa 40k 0,G -cd 3rg -2q,G -ja 3gj 11,T -m0 37v