There's light-years of difference between photographic/video proof of car accidents and the results of such upon the vehicles' occupants, and using threats against those who won't come to your way of thinking.
1 Thessalonians 5:21 (KJV): 'Prove all things'
The evidence for car crashes - and what they do for real - exist, and are numerous.
The evidence for the existence of a 'Hell'? Your call, as per the above piece of Scripture that destroys Scripture. [/paradox]
Advising people (certainly if using seatbelts is compulsory) =/= 'Offensive'.
Lying is.
Paying money for something that you'll never see and/or use (PROTIP: even nebulous online car insurance - again, like seatbelts in most countries is compulsory - exists in the company's database, once paid for): a scam, a con. Investing emotional currency - and more - into something that doesn't exist, i.e. a 'God'...!
People don't take too kindly to being conned.
A company in it's adverts saying 'Buy our products or DIE!'; it's shop branches forcing passersby into it's shop(s) and making people buy things at gunpoint. People don't take too kindly to Threats, y'see (and it's the worst kind of P.R./advertising imaginable).
Moral:
image
PERSUASION DOES NOT WORK THAT WAY! GOODNIGHT!
A piece of advice, fundies: Drop the 'Turn or Burn' bullshit, to the extent of eliminating that unjustifiable 'Hell' psychological blackmail/terrorism from the Bible completely, and maybe you'll get more converts. [/Unitarian Universalism]
And adverts for using seatbelts = 'Hell'? Use of bad analogy. Your argument - along with your 'religion's terrorist doctrine's right to exist - is invalid