What do these three things have in common

Pretty easy, but it just dawned on me over the weekend.

All have been around since ww2?

Things Colton Harris used to get to the Bahamas?

All three are unreasonably and inexplicably popular?

I'm surprised no one has got it although some are in the ballpark.  I thought I couldn't be the only geek to notice.

Need an embarrassed emoji.  I relied on memory to post this, THEN I checked.  I thought they  were all introduced in 1958 hence 70 years old, but double checking the Cessna 172 was introduced in 1956, not 58 so just ignore my incoherent ramblings.

They all originally had 4 cylinder engines?

All will destroy you financially faster than a cocaine habit? 

stanger_missle said:

All will destroy you financially faster than a cocaine habit? 

Technically don't they cause a cocaine habit thereby destroying you even faster.

Ok, more automotive based...

What do these 3 cars have in common?

(There are 2 correct answers. 1 is Challenge related, 1 is not)

SVreX said:

Ok, more automotive based...

What do these 3 cars have in common?

(There are 2 correct answers. 1 is Challenge related, 1 is not)

Italdesign?

3 cars that have never been in my garage.

SVreX said:

Ok, more automotive based...

What do these 3 cars have in common?

(There are 2 correct answers. 1 is Challenge related, 1 is not)

3 cars that their pictures are blocked from my works internet.

Adrian_Thompson said:

Need an embarrassed emoji.  I relied on memory to post this, THEN I checked.  I thought they  were all introduced in 1958 hence 70 years old, but double checking the Cessna 172 was introduced in 1956, not 58 so just ignore my incoherent ramblings.

Well technically that's a Cessna 175 which was introduced in 1958.... So you're correct, I guess?

In reply to The0retical :

Well that's strange.  I assume you googled the N number to get it was a 175.  The nose and cowl look more like a 172.  I thought the 175's all had the raised nose and cowl for the constant speed prop?  This is what I think of as the nose on a 175

In reply to Adrian_Thompson :

Internet research from Googling the N number says the motor in N7688M was changed to a 6cyl HO 220HP a Franklin under an STC. He probably changed the cowl to the old 172 version and that's why it also has the single exhaust rather than the duals found on normal 175's.

I actually did lookup the N number because I was wondering what was up with the exhaust initially.

aircooled said:

3 cars that have never been in my garage.

I'm sorry Cliff, but that is incorrect. 

The hump on a 175 cowling is to clear the gearbox

SVreX said:

Ok, more automotive based...

What do these 3 cars have in common?

(There are 2 correct answers. 1 is Challenge related, 1 is not)

The obvious answer is 3 cars you’ve owned, but I also believe they’re 3 cars you sold to other GRMers, correct?

In reply to SVreX :

Soul sucking FWD?

In reply to Trans_Maro :

The SVX was (mostly) AWD

In reply to Pete Gossett :

Everything I own sells to GRMers, so that doesn’t  count. 

Yes, I’ve owned them, but that’s not what I was thinking

SVreX said:

In reply to Pete Gossett :

Everything I own sells to GRMers, so that doesn’t  count. 

Yes, I’ve owned them, but that’s not what I was thinking

You’ve challenged all of them?

Split side windows. 

w/o looking or spell checking I'm gonna say Guigario.  Heck if Bertone can design the mkII Astra convertible.