Ну если брать машину полюбому, то VW Golf обойдется на неделю примерно в 400 евро со страховкой. Ехать надо 500 км в одну сторону при этом, кстати, пересечете границу германия/австрия аж два раза.
В приложенном файле схема маршрута.

А вот легенда (первые несколько пунктов можно вычеркнуть):

City Direction Distance Time
(Viena) Start: 0 m 00:00

after 164 metres: Turn left 164 m 00:00

after 39 metres: Turn right 203 m 00:00

after 2.1 km: Turn right, to Landstraßer Hauptstraße 2.3 km 00:06

after 629 metres: Turn left, to S23 2.9 km 00:08

after 285 metres: Turn to motorway, to A23/E59/E60 3.2 km 00:09

Wien-Inzersdorf after 6.6 km: Towards Graz, to A2/E59/E60 9.8 km 00:13

Vösendorf after 3.5 km: Towards Salzburg, to A21/E60 13.3 km 00:15

Steinhäusl after 36.8 km: Towards Salzburg, to A1/E60 50.1 km 00:37

Sankt Pölten after 25 km: Towards Salzburg, to A1/E60 75.1 km 00:52

Knoten Linz after 113.6 km: Towards Salzburg, to A1/E55/E60 188.7 km 02:00

A1/A25 after 5.9 km: Towards Salzburg, to A1/E55/E60 194.7 km 02:04

Knoten Voralpenkreuz after 21 km: Towards Salzburg, to A1/E55/E60 215.6 km 02:17

Knoten Salzburg after 101.9 km: Towards München, to E52/E60 317.6 km 03:18

Salzburg E52@E60 after 3.6 km: Cross the border, to E52/E60 321.1 km 03:20

Piding E52@E60@A8 after 76 metres: Cross the border, to A8/E52/E60 321.2 km 03:20

Dreieck Inntal (56/101) after 68.1 km: Towards Kufstein, to A93/E45/E60 389.3 km 04:01

Nickelheim A93/E45/E60 393.5 km 04:03

Petrol station; Restaurant; Hotel A93/E45/E60 399.8 km 04:07

Kiefersfelden E45@E60@A93 after 15.4 km: Cross the border, to E45/E60 415.3 km 04:16

Kufstein E45@E60@A12 after 267 metres: Cross the border, to A12/E45/E60 415.5 km 04:17

Kramsach (32) after 31.1 km: Take exit Kramsach (32) 446.6 km 04:35

after 712 metres: Turn left; Leave the motorway 447.3 km 04:36

after 677 metres: Turn right, to B171 448 km 04:36

Percha after 1.3 km: Turn right, to B171 449.3 km 04:38

Sankt Gertraudi after 2.9 km: Straight ahead, to B171 452.2 km 04:42

Landhaus after 1.1 km: Straight ahead, to B171 453.4 km 04:43

after 1.8 km: Turn left 455.1 km 04:45

Strass im Zillertal after 313 metres: Straight ahead 455.4 km 04:45

after 119 metres: Turn right 455.5 km 04:46

after 1.4 km: Straight ahead, to B169 457 km 04:47

Gagering after 3.3 km: Straight ahead, to B169 460.3 km 04:51

Ried im Zillertal after 6.3 km: Straight ahead, to B169 466.7 km 04:57

after 2.2 km: Turn left, to B169 468.9 km 04:59

after 728 metres: Turn right, to B169 469.6 km 05:00

Haslach Sc after 5.1 km: Straight ahead, to B169 474.7 km 05:05

Hippach after 7.2 km: Straight ahead, to B169 481.9 km 05:13

after 3.2 km: Turn left 485.1 km 05:17

(Mayrhofen Sc) You are at your destination 485.4 km 05:17