A vehicle purchase muhurat is an auspicious time to buy a car, bike or other conveyance, chosen from a favourable nakshatra, tithi and vara in the daily panchang. This finder scans every day in the range you give, for your city, and ranks that day's auspicious Choghadiya slots and its Abhijit Muhurta from 0 to 100. Thirteen nakshatras count as favourable for a vehicle here, and windows falling inside Rahu Kaal, Yamaganda or Gulika Kaal are excluded outright.
In Vedic electional astrology (Muhurta), a vehicle is signified by Venus, the karaka of conveyances and comforts, so a day with a well-placed Moon and an unafflicted Venus is preferred. The strongest days combine an auspicious nakshatra, a favourable tithi and a suitable weekday, while keeping the actual purchase or delivery outside inauspicious periods like Rahu Kaal.
The factors listed below are the ones this finder actually scores. It reads them from the panchang computed for your city and date, so the same calendar day can rank differently in two cities whose sunrise, and therefore whose day-parts, do not coincide.
Pushya nakshatra is especially prized for purchases; when it falls on a Thursday it forms Guru Pushya, and on a Sunday Ravi Pushya - powerful buying yogas often recommended for vehicles, gold and property. Festival days such as Vijayadashami (Dussehra), Dhanteras, Akshaya Tritiya and Gudi Padwa are also treated as ready-made muhurats when a personalised date is not available. For the most precise timing, one's own Moon sign (Chandra bala) should also support the chosen day.
Those named combinations are tradition rather than tool behaviour. The finder does not carry a festival table or a Guru Pushya rule of its own: it simply scores Pushya as one of its thirteen favourable nakshatras, and a Thursday as one of its four favourable weekdays, so a Guru Pushya day tends to rise to the top of a scan on its own arithmetic rather than by being named.
A good date is only half the election. The finder offers windows rather than whole days because the day itself contains periods that are set aside: Rahu Kaal, Yamaganda and Gulika Kaal, whose lengths follow your city's real sunrise and sunset and therefore differ by date and place. Any candidate window overlapping one of them is capped at 40, labelled avoid and dropped from the recommended list.
What remains are the day's auspicious and neutral Choghadiya slots - Amrit, Shubh, Labh and Char, one eighth of the daylight each - plus Abhijit Muhurta, the eighth of the daytime's fifteen equal muhurtas, which is skipped on Wednesday. Taking delivery, signing the papers or making the first payment inside one of these is the practical way to use the result.
For educational purposes. Astrological interpretations are traditional and not a substitute for professional advice.