This is some funny stuff created by members of the german TTD-Forum www.tt-ms.de

It was done long ago in 2005, but the code was finally finished in 2007 (variable ID).

This is PUBLIC DOMAIN. You can use and copy and modify, but please give some credit 
to the orginal artists.

Taxi: graphics by IGNUS
Pizzabote: graphics by AnD
Formular1. graphics by AnD

All coding done by Bernhard (BeSt-Com)

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How to use, data:
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TaxiW  has ID 2Fh, introduction 1920 - yellow
Taxi2W has ID 30h, introduction 1920 - company colour (cc)
TaxiModern has ID 31h, introduction 1970 - light yellow
Pizzabote is ID 32h, introduction 1970 - Pizzabote colours
F1Jordan is ID 33h, introduction 1970 - company colour (cc)

Cargo is Passenger refitable to Tourist if Tourist is available as a cargo.

These vehicles should work as-is with most other RV sets.
They should be loaded AFTER other RV sets.
The ID's were selected to fit in nicely with FooBar's Road Vehicle ID Range Usage Proposal as well as the default TTDX RV's.
There were no conflicts with George's LV4.
However some RV sets do not follow FooBar's or George's methods.
We have come up with a solution:
For compatibility with other RV sets the ID's of our RV's can be changed with parameters:
all IDs could be changed in the newgrf.cfg (Openttd.cfg) in this way: 

"newgrf/Taxi.grf 10" (OpenTTD: "Taxi.grf 10") will  change to ID 10 
"newgrf/Taxi.grf 01" (OpenTTD: "Taxi.grf 01") will  change to ID 01

A real life example is with Zephyris' Generic Road Vehicle Set where he uses 84 ID's consecutively, leaving only the last 4 slots available for our 5 vehicles.
Using parameters:

taxiW.grf 70
taxi2W.grf 84
taximodw.grf 85
pizzabote.grf 86
f1-jordan_ccw.grf 87

we had a good solution with only one of Zephyris' RV's (we chose a refrigerated truck ID 70) being replaced.
You should experiment with the ID parameters to find the best solution for your needs.
If you have problems, check with the authors of the other RV sets to find out which ID's are available.
** HEX versus DEC **
For some sets you will have to use HEX numbers for the parameters and for other sets you will have to use DEC (decimal). The authors should know which type to use.
For your convenience here is a DEC/HEX conversion chart for the 88 RV slots:

[Slot#. DEC/HEX]
 1.  0/00 | 17. 16/10 | 33. 32/20 | 49. 48/30 | 65. 64/40 | 81. 80/50
 2.  1/01 | 18. 17/11 | 34. 33/21 | 50. 49/31 | 66. 65/41 | 82. 81/51
 3.  2/02 | 19. 18/12 | 35. 34/22 | 51. 50/32 | 67. 66/42 | 83. 82/52
 4.  3/03 | 20. 19/13 | 36. 35/23 | 52. 51/33 | 68. 67/43 | 84. 83/53
 5.  4/04 | 21. 20/14 | 37. 36/24 | 53. 52/34 | 69. 68/44 | 85. 84/54
 6.  5/05 | 22. 21/15 | 38. 37/25 | 54. 53/35 | 70. 69/45 | 86. 85/55
 7.  6/06 | 23. 22/16 | 39. 38/26 | 55. 54/36 | 71. 70/46 | 87. 86/56
 8.  7/07 | 24. 23/17 | 40. 39/27 | 56. 55/37 | 72. 71/47 | 88. 87/57
 9.  8/08 | 25. 24/18 | 41. 40/28 | 57. 56/38 | 73. 72/48 |
10.  9/09 | 26. 25/19 | 42. 41/29 | 58. 57/39 | 74. 73/49 |
11. 10/0A | 27.	26/1A | 43. 42/2A | 59. 58/3A | 75. 74/4A |
12. 11/0B | 28. 27/1B | 44. 43/2B | 60. 59/3B | 76. 75/4B |
13. 12/0C | 29. 28/1C | 45. 44/2C | 61. 60/3C | 77. 76/4C |
14. 13/0D | 30. 29/1D | 46. 45/2D | 62. 61/3D | 78. 77/4D |
15. 14/0E | 31. 30/1E | 47. 46/2E | 63. 62/3E | 79. 78/4E |
16. 15/0F | 32. 31/1F | 48. 47/2F | 64. 63/3F | 80. 79/4F |


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Other grfs, avaiable at grfcrawler (soon):
VT133 (Railbus "Schweineschnäutzchen") est. 1930
pseudolok (Engine looking like a waggon)
Junkers Ju-52 Set
Berliner S-Bahn (4 different types)


