car.txt contents:

[pinto]

horse_power = 50
price = 10

[corvette]

horse_power = 200
price = 11000

#!/usr/bin/env/perl

use strict;
use warnings;

use Car;

my $car = Car->new('corvette');

print "My ", $car->model, " has ", $car->horse_power, " horsepower!";

1;

package Car;

use strict;
use warnings;

use Config::Tiny;

my $CONFIG = './car.txt';

sub new {
    
    my ($class, $model) = @_;
    
    my $cfg = Config::Tiny->new();
    $cfg = Config::Tiny->read($CONFIG);
    
    die warn "No such model $model!\n" unless exists $cfg->{$model};
    
    return bless  { model => $model, %{$cfg->{$model}} } , __PACKAGE__;
}

sub model {die warn "Can't change model!" if @_ > 1; $_[0]->{model}; }
sub horse_power {$_[0]->{horse_power} = $_[1] if @_ > 1; $_[0]->{horse_power}; }
sub price {$_[0]->{price} = $_[1] if @_ > 1; $_[0]->{price}; }

1;