Where in the Torah does it say I cannot drive a motor vehicle on Shabbat? I won't work or drive for the purpose of work, but that's not going to prevent me from driving.
It's admirable that you can follow the Rabbinical Judaism to great degree. Many Jews, however, cannot, and not for lack of respect of Hashem or for lack of want, but simply because it is impractical and, indeed, impossible in some cases.
Judaism IS rabbinical. There is no alternative. G-d authorizes Rabbis to interprete the Law.
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8 If there arise a matter too hard for thee in judgment, between blood and blood, between plea and plea, and between stroke and stroke, even
matters of controversy within thy gates; then shalt thou arise, and get thee up unto the place which the LORD thy G-d shall choose.
9 And thou shall come unto the priests the Levites, and unto
the judge that shall be in those days; and
thou shalt inquire; and they shall declare unto thee the sentence of judgment.
10 And thou shalt do according to the tenor of the sentence, which they shall declare unto thee from that place which the LORD shall choose; and
thou shalt observe to do according to all that they shall teach thee.
11 According to the law which they shall teach thee, and according to the judgment which they shall tell thee, thou shalt do;
thou shalt not turn aside from the sentence which they shall declare unto thee, to the right hand, nor to the left.
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Deuteronomy 17, 8-11.
If you want to understand the logic of rabbis that forbade driving a car on Shabbat, it is a very good intention. It is pure Torah study, which is a great mitzvah. You can ask a rabbi to explain it to you, ask him all the hard questions you have.
But if one uses his/her intelligence to find an excuse not to do what the rabbis say, it is a great sin. By this apporoach one can easily find excuses not to perform any commandment one does not like, including those concerning the Land of Israel.