Questions tagged [road-vehicles]

Use this tag for question about cars, trucks and other road transport.

Road vehicle with four wheels and an engine intended to be a means of transport.

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Does lowering the legal BAC make driving safer?

Lower legal blood alcohol concentration limit laws are passed under the assumption that a lower legal limit will reduce the number of accidents. For example, the U.S government lowered the legal BAC for driving from 0.1% to 0.08%. Is there any…
GBa
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Is there a high ecological impact from buying a new car?

First, a disclaimer: this is my first question here, so please point out any deficiency so I can amend it. Here in Italy, the Government has a recurring policy (it is happening every 2/3 years now) of rejuvenating the traveling cars by issuing…
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Are expired car seats no longer safe to use?

Many websites will claim a variant of the following claim: Do not buy a used car seat unless you can verify the age of the seat. There should be a manufacturer's label on the back or bottom of the seat that gives the manufacture date and/or…
JonathanReez
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Did the Renault Espace sell only 9 cars when it was launched?

According to Richard Hammond of Top Gear, Renault's entry into the people carrier market sold just nine cars in its first month (1:18 - 1:27). However, I cannot find a single source to back up Hammond's claims. Is it true that this car was a flop…
Thomas O
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Does an e-bike produces only 1/10 carbon emissions for each mile of an conventional electric car?

According to Lin, Bo (Deputy General Director at Furi E-Bike1): he says the following in an interview in the program Horizons from WOBI: Bicycles to lead acid battery generates some pollution. The government has some regulations to limit bike…
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Is driving stoned safer than driving drunk?

Some support that driving while under the influence of marijuana is safer than driving when drunk, saying that people who drive high always drive at slower speeds so even if they cause an accident, it's a much safer one. Has any research been done…
John Demetriou
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Are there lots worldwide filled with thousands of unsold new cars left to ruin?

This link came in an email that was getting passed around the office today: http://www.vincelewis.net/unsoldcars.html The premise is that car manufacturers, not wanting to dilute their inventory to a point that would push supply up and price down,…
DeeDee
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Are Auto Manufacturers required under US Federal Law to provide parts for a set period of time?

Via snopes.com Message Board and here, and a similar question on mechanics.stackexchange.com: Auto manufacturers are required by US Federal Law to have parts available for any models they sold for the period of 10 years. I have also heard this…
Steven Bone
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Is reducing carbon emission from cars futile?

One of the claims in "SuperFreakonomics" is, that reducing CO2 emissions produced by cars have very little practical impact on global warming. Their arguments are: human activity is responsible for only 2% of CO2 emissions, with the reminder…
vartec
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Is sleeping in a car with the windows rolled up dangerous?

I keep seeing this conspiracy get repeated. The conspiracy goes like this: car manufacturers don't want homeless people sleeping in cars, so when a car is off, the air vents automatically close. They say you must crack open a window, but this…
Willy150
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Is it better to cross rough railroad tracks very slowly or at normal/higher speeds?

When encountering the average bumpy railroad crosssing such as the one pictured above, does slowing down almost to the point of stopping (as you would for a speed bump) produce less stress on the vehicle than simply continuing over the crossing at…
Monkey Tuesday
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Did Winston Churchill praise Rolls-Royce engines?

In 1919, the world's first non-stop trans-Atlantic flight happened, and Rolls-Royce engines provided the power to make it happen. Marking the 100th anniversary of the 20th-century milestone, Rolls-Royce crafted a limited-edition line of Wraith…
Barry Harrison
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Is keyless theft/relay theft a practical threat for vehicles with fob/keyless entry?

Some sites, such as AutoExpress, are warning about a method of breaking into vehicles with keyless entry by capturing and relaying the fob's signal. To quote AutoExpress: The process criminals use to steal a car via keyless theft – also known as…
Ranger
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Can Doom run on a car's infotainment system?

In this youtube video a hacker claims it is easily possible to mod the infotainment system in his Porsche to run the game Doom using the controls of his car to control the game. This Gizmodo/Sploid story describes the supposed hack: A YouTuber…
matt_black
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Do women pay more than men when buying cars?

In the recent Bud Light commercial, Amy Schumer makes many claims regarding gender equality. One of these claims is that women pay more than men when buying cars. Here's a link to said video. Is this true?
JS Lavertu
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