[ZombiePhysicist]

Nah, not a massive waste of time. Usually 4-5 gallons is two weeks for me. And I know the times when Costco isn't busy (Sundays in UT, no line). I grocery shop twice a month anyways so it's a planned stop. An extra minute in a day twice a month does not make a difference to me.

I get better wear on the tires and lower rolling resistance as well as that 0.01 extra G. Plus finer integration over time of the price at the pump.

So if this was the car that you're producing, you would fuel it all the way and have 650 pounds of people in it, right? Then we can say the weight of the car is 3000 pounds and then massively overdeliver. Or why don't you do it like aircraft? Put a maximum vehicle weight, like 5000 pounds before the suspension can't appropriately function. Overly conservative values are nonsensical. GMA's weight statement is perfectly logical. You don't need to exceed or be below expectation because the weight of the vehicle is exact, and you get to decide how much fuel you want in it for whatever activity you're going to do (drag strip, daily usage, cross country GT, track, etc). If it would make you happy, I'm sure GMA could just list the car as 3800 pounds like an Aventador. Underpromise and overdeliver, right?

If you're trying to compare different vehicles and one car has a 13 gallon tank, and another has a 21 gallon tank, and the weight of the fuel is the difference maker, which is the lighter car? I'd say the one that could do combined cycle 200 miles of range and whatever weight that car happens to be at with that amount of fuel. This way, you can directly compare vehicles of different classes too (which is what you would want as a governing body for standardization).

You guys that never fill up for weight, I’m truly impressed. My sloth would never allow it, I always top off. Horses for courses I guess.

I guess I could be fine with curb being everything but fuel, if everyone standardized on it. Or even a standard amount of fuel might be better, 10 to 15 gallons say.

But, what about the penalty for the extra weight for the extra material for the tank? 21 gallons isn’t that big. I think my tank is around 18 gallons. The 3 gallon penalty is not that great Really, but I see fair arguments for different solutions.

But the empty tank weight just seems unsatisfying, and I would argue unrealistic for most. Maybe the best solution would be just to standardize on say 12 Gallons of fuel and all other fluids topped off (and yes, tough luck we will penalize you if you have a big windshield fluid reservoir because we will top that off For fear some of you may decide to fill the oil only 1/4 the way).

 

[TougeSpirit]

You guys that never fill up for weight, I’m truly impressed. My sloth would never allow it, I always top off. Horses for courses I guess.

I guess I could be fine with curb being everything but fuel, if everyone standardized on it. Or even a standard amount of fuel might be better, 10 to 15 gallons say.

But, what about the penalty for the extra weight for the extra material for the tank? 21 gallons isn’t that big. I think my tank is around 18 gallons. The 3 gallon penalty is not that great Really, but I see fair arguments for different solutions.

But the empty tank weight just seems unsatisfying, and I would argue unrealistic for most. Maybe the best solution would be just to standardize on say 12 Gallons of fuel and all other fluids topped off (and yes, tough luck we will penalize you if you have a big windshield fluid reservoir because we will top that off For fear some of you may decide to fill the oil only 1/4 the way).

12 gallons on a F12 gets you 156 miles. 12 Gallons on a T.50 could be over 260 miles.

Normalize to range.

 

[gsxrian]

4-5 gallons of gas last about 15-20 minutes for me.

On my average drive, i fill up three times in one day, or six times on a weekend.

Sebring is about 100 miles away and i average < 8 mpg.

 

[TougeSpirit]

Why are you interjecting GROSS VEHICLE WEIGHT into this conversation? We are talking CURB weight:

Curb weight is the weight of the vehicle including a full tank of fuel and all standard equipment. It does not include the weight of any passengers, cargo, or optional equipment. Curb weight is considered the closest weight to the actual weight of the vehicle.

curb weight definition motor vehicle - Bing

Curb weight does not necessarily mean full tank of fuel (it depends on regulatory body). Nor does it actually reflect the "actual weight of vehicle" depending on the case usage of said vehicle. In fact, in EU, it includes the weight of a driver.

You didn't answer my question. If a car with a 13 gallon tank (higher dry weight) and another with a 21 gallon tank (with lower dry weight) were such that 50 pounds made the 21 gallon tank car have a higher full tank weight, which is the lighter car?

Remember, decision to size fuel tanks can be completely different amongst manufacturers for all kinds of reasons.

Let's even just use the T.50 against a theoretical T.50 for example. If the T.50 had extra 2 fuel tanks in the luggage compartment. Is it a heavier car (aside from the weight of fuel plumbing and fuel tank)?

 

[ZombiePhysicist]

12 gallons on a F12 gets you 156 miles. 12 Gallons on a T.50 could be over 260 miles.

Normalize to range.

Why? That a car is inefficient or efficient is in the mpg stat. I don’t need it to be part of my weight stat.

 

[TougeSpirit]

4-5 gallons of gas last about 15-20 minutes for me.

On my average drive, i fill up three times in one day, or six times on a weekend.

Sebring is about 100 miles away and i average < 8 mpg.

Even more reason for curb weight to be normalized to range.

Why? That a car is inefficient or efficient is in the mpg stat. I don’t need it to be part of my weight stat.

Then why do you need fuel as part of the weight stat? The capacity of the fuel tank is also listed on the car placard. Typically, more inefficient cars have larger tanks as they consume more fuel to get a specific range.

Thus, they would be more "penalized" in weight because that would be actually how much an owner would need to have to do typical things in that vehicle.

 

[Woppum]

@Bridster any news on status of your car ? Heard my tub arrived to site yesterday!

 

[Bridster]

Damn, you guys are taking this very seriously! As long as you know what the standard the manufacturer reports it in is, you can just add or substract weight and then use your preferred method. Which is mostly what I do. I usually state the weight of the T.50 as 1050kg, since the fully fueled car standard is the most common and it's what you'll see the majority of magazines use (where most of the measured weights come from). I think that Murray's way of stating weight - which is also what all the racing categories use, so maybe that's where it comes from - certainly has merit, but since he is pretty much the only one who states weight that way, trying to adopt it in wider use would be too hard and confusing.

@Bridster any news on status of your car ? Heard my tub arrived to site yesterday!

Ah, I see that my expertly accurate posts have given you the idea that I am internally familiar with the project. Sadly, though, I am merely obsessed with the car, rather than having bought one. Either way, glad to hear your build is going along nicely! Fingers crossed some latent supply chain issues don't suddenly crop up, eh?

 

[ZombiePhysicist]

Even more reason for curb weight to be normalized to range.


Then why do you need fuel as part of the weight stat? The capacity of the fuel tank is also listed on the car placard. Typically, more inefficient cars have larger tanks as they consume more fuel to get a specific range.

Thus, they would be more "penalized" in weight because that would be actually how much an owner would need to have to do typical things in that vehicle.

Um because it’s part of the car and has weight. Just like oil and windshield fluid.

 

[gsxrian]

This engine probably weighs as much as a T50

http://instagr.am/p/CnFeMUHLBt8/

 

[rnixon]

You guys that never fill up for weight, I’m truly impressed.

Me too. I apply the same algorithm to eating, which has its consequences..

 

[Chimaera]

https://www.reddit.com/r/spotted/comments/11un1wj

 

[Roxind]

Doesn’t scream hypercar to me. That’s good, I guess 🤷‍♂️

 

[Woppum]

Doesn’t scream hypercar to me. That’s good, I guess 🤷‍♂️

I suppose depends what you are comparing it with but defo understated like the F1, apart from it rather flamboyant anus of course. What stuck me the most is just how small it is, amazing really you can fit 3 adults (just), lots of luggage and a v12 in there!

 

[gsxrian]

https://www.reddit.com/r/spotted/comments/11un1wj

Nice car, but not worth 10x 720s price, i prefer the look of the Valkyrie.

I think the UK's 'massive' rear license plate, could 'double' as a diffuser.

.... typical British weather, yuck!

 

[invisiblewave]

Nice car, but not worth 10x 720s price, i prefer the look of the Valkyrie.

I think the UK's 'massive' rear license plate, could 'double' as a diffuser.

.... typical British weather, yuck!

Can the Valkyrie even run in typical British weather though? 🤔

 

[rnixon]

.... typical British weather, yuck!

The UK doesn't have typical weather - we get ANY weather at ANY time. You can count on not counting on it.

Can the Valkyrie even run in typical British weather though? 🤔

Fixed it for you.