Please use this megathread for general questions about repair/maintenance. A fresh thread will be posted every Tuesday and posts auto sorted by new. You might also want to check out /r/MechanicAdvice. Make/Model specific questions should be asked on Make/Model specific subreddits. Check the AutosNetwork for a complete list of those subreddits.

https://www.youtube.com/watch?v=om21ROB1IMQ

It's hard to beat Mr Catchpole these days. Random, but as a recent owner of an ultrawide monitor I love that his content is 21:9, always a special treat when one of his videos comes out. This one is no exception.

Kinda been getting conflicting answers. Some say heat isn't necessary some say it is?? Wikipedia does say

In an internal combustion engine, a turbocharger (also known as a turbo or a turbosupercharger) is a forced induction device that is powered by the flow of exhaust gases.

And also

The current categorisation is that a turbocharger is powered by the kinetic energy of the exhaust gases

But kinetic energy does increase with heat so it should play a major role, no?

Any posts pertaining to car buying suggestions or advice belong in this weekly megathread; do not post car-choosing questions in the main queue. A fresh thread will be posted every Monday and posts auto sorted by new. A few other subreddits worth checking out that will help your car buying experience are /r/WhatCarShouldIBuy, /r/UsedCars and /r/AskCarSales. www.everydaydriver.com may also be helpful.

Make/Model-specific questions should be asked on Make/Model-specific subreddits. Check the AutosNetwork for a complete list of those subreddits. Also check out our community-sourced Ultimate car buying wiki.

For those posting:

Please use the following template in your post.

Location: (Specify your country or region)

Price range: (Minimum-Maximum in your local currency)

Lease or Buy:

New or used:

Type of vehicle: (Truck, Car, Sports Car, Sedan, Crossover, SUV, Racecar, Luxury etc.)

Must haves: (4x4, AWD, Fuel efficient, Navigation, Turbo, V8, V6, Trunk space, Smooth ride, Leather etc.)

Desired transmission (auto/manual, etc):

Intended use: (Daily Driver, Family Car, Weekend Car, Track Toy, Project Car, Work Truck, Off-roading etc.)

Vehicles you've already considered:

Is this your 1st vehicle:

Do you need a Warranty:

Can you do Minor work on your own vehicle: (fluids, alternator, battery, brake pads etc)

Can you do Major work on your own vehicle: (engine and transmission, timing belt/chains, body work, suspension etc )

Additional Notes:

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For those providing suggestions: Facts are ideal in this thread, especially when trying to help out a new car buyer. Please help out buyers with sources and reasoning for your suggestions.

For those asking for help, be sure to thank those who take the time to offer you advice (especially those who lead you to a purchase.) A follow up thank you and the knowledge that their advice led to a purchase is a very warm fuzzy feeling.

A peek into the amazing drivetrain of the Gemera. Finally seeing the Calibra DTM front end making an appearance in a road car, even if they fit it backwards at the back. https://youtu.be/NdeCIo9yixo?si=xwnXaw-wd7T1Mhsr

Link here. Adrian Hallmark (Aston CEO):

“If you mapped the telemetry of a V12 engine – even a Valkyrie race engine, naturally aspirated – measure the frequencies and then built those into the body structure of the vehicle linked to the throttle position and torque load of the electric-motors…and then suppressed digitally by counter waves the nasty high-pitched, cheap sounding electrical frequency noises, you would feel exactly like you’re in a Valkyrie V12 Le Mans car.”

I saw a post on the television sub about shows that were 20 to 30 years old that still stood the test of time or hadn't aged too horribly. I guess this is tougher with vehicles since technology makes substantial improvements (i.e. check out the fuel economy of a 4-cylinder compact from the '80s vs a modern one). A lot of people say they can't live without Android Auto or Apple Carplay now, something no '90s car will have stock.

I use the Ferrari F40 as an example of a supercar that is no longer at the top, but is still fairly competitive against some modern entry-level models in the segment.

For 2025 there are 4 options for the GR Corolla, only 1 of them being a non grayscale color.

Black, Ice Cap, Heavy Metal, and Supersonic Red.

I am pretty sure this is the least amount of colors you can get on a performance car in 2025.

Can anyone find a new production performance car that has fewer?

Ford Fusion Sport comes to my mind with its fragile PTU/transmission that basically limits any performance applications.

Digging up snow-covered gems. Whatcha Hot?

I hated on this thing a lot when I saw pictures because it’s not a bus, even though people are acting like it is. But there were three parked out from of my VW dealer: white, yellow and white, and blue and white. Absolutely beautiful. I pulled over and looked. Seeing them in natural light was really pretty cool. Everything about them was perfect, and the paint, especially that blue, was just astonishing. I grew up around my parents’ New Beetles and aircoolers circulating among family and family friends, and the ID.Buzz kinda feels like that in its appearance. It seems to be about Vanagon size too.

I don’t like modern cars. But damn this one is actually interesting. I wish it wasn’t 70k dollars and that it came in other colors (wax red, sunshine yellow)

With EV demand rising and battery components heavily reliant on cross-border supply chains, how will tariffs on Canada and Mexico impact the EV industry?

Will this slow down EV adoption substantially enough to diminish the last decade of investments, or force companies to innovate domestically? Will you still buy one even if ICE prices come down? Will you change back?

Would love to hear from anyone in the industry, what’s the behind-the-scenes take on this?

What are the little things that annoy you in your own car? Or maybe even your cars? For example my daily driver is a 2015 Mazda 3. it’s great to drive and I love it but some things are just……for example only the driver’s window has the automatic roll up/roll down feature. For all the other windows I have to hold the button. And while I have electric folding mirrors I can only activate it manually, not automatically when locking/unlocking the car. My other car is a 1990 Miata and the only real downside is that I have a new cover with a glass window and it’s too heavy to close it from the inside one-handed. I always have to step out of the car to close it